1. Bank card security knowledge

Compared with cash, bank card is a safe and fast means of payment.

Currently, various commercial banks and UnionPay have adopted various technical means and security measures to maximize the security of cardholders' funds. However, it is very important for cardholders to have some necessary security awareness when using bank cards, understand some common bank card crime methods, and master basic prevention skills.

The following are the top ten security issues that cardholders may encounter when using bank cards: Question 1: How should cardholders protect the security of their bank card information? Some criminals will steal the cardholder's bank card account information, forge counterfeit cards and then steal the cardholder's account funds, or steal other people's identity information and then pretend to be others to apply for a credit card for malicious overdraft consumption. Therefore, cardholders need to protect the security of their bank card account information (card number, password, etc.) and personal information.

Tips for prevention: 1. It is important to set a clever password. Cardholders should change their password immediately after getting a new bank card, and should change their password regularly.

Set some relatively complex passwords, do not set simple passwords such as 123456, 888888, etc., and change passwords regularly; do not use your birthday, home phone number, etc. as passwords, and do not use them easily under any circumstances. Disclose account information such as bank card passwords to others. Remember, no one (including bank staff) has the right to ask for your PIN.

2. Cover your personal information. Cardholders should pay attention to protecting their personal information to prevent personal information from being abused by criminals.

Do not leave your personal information to unfamiliar companies or individuals. Do not leave your true personal identity information (including family and work information) on Internet pages. If you need to leave it for a certain business, When taking a copy of your ID card, it is best to indicate the purpose of the copy, such as "for recruitment only". Question 2: I often see advertisements online or in newspapers claiming to be credit card intermediary service agencies authorized by banks to help apply for gold cards or provide credit card financing. Are they trustworthy? What should I do if I want to apply for a credit card? Generally speaking, most of the so-called intermediaries that claim to help apply for gold cards or provide credit card financing services are not trustworthy. People who want to apply for a credit card should pay attention to the following knowledge: 1. Apply for a credit card through formal channels. If the applicant To apply for a credit card, you should go directly to the bank counter or a formal marketing agency authorized by the bank. Such marketing agencies do not need to pay any card application fees, and they will not provide you with credit card financing or cash withdrawal services.

2. A credit card is a revolving credit limit granted by the bank based on the applicant's good personal credit status. The card-issuing bank will adjust the corresponding credit limit based on the cardholder's use of the credit card and credit status. Therefore, you cannot go through some illegal intermediaries for temporary convenience or to obtain a higher credit limit, and you cannot actively participate in credit card cash out. Once discovered by the bank, it will cause great damage to your personal credit status.

3. If cardholders find illegal intermediaries or cash-out merchants, they are welcome to actively call the card-issuing bank or UnionPay customer service hotline 95516 to report it, so as to maintain a healthy development environment for bank cards. Question 3: What should cardholders pay attention to when using bank card self-service terminals such as ATMs? Some criminals will set up some "mechanisms" in self-service banks and ATM machines, and at the same time peek at the password from behind. When the cardholder cannot make normal transactions or create the illusion that the card has been swallowed, they will pretend to be a good Samaritan to help swipe the card and take the opportunity to change the card or wait for the cardholder to swipe the card. After the cardholder left, the card was taken out and used.

Therefore, cardholders should be cautious when using bank card self-service terminals such as ATMs. Prevention tips: 1. Be careful when using self-service banking service terminals. Pay attention to whether there are suspicious people around you. Avoid interference from others during operation and prevent others from peeking into the password. If you encounter situations such as swallowing cards or not dispensing money, you should call the issuing bank. The national unified customer service hotline will promptly contact the card-issuing bank.

2. Don’t trust “well-meaning people” easily. Do not call the phone number posted next to the machine, and do not discard printed receipts at will. In addition, you do not need to enter a password for card access control.

3. Keep the card in your eyes when swiping it for consumption.

When swiping your card to enter your password in public places (such as supermarkets, restaurants, etc.), you can block the password keyboard with one hand to prevent others from peeking into your password.

Question 4: How to identify fake text messages or phone calls? SMS and telephone fraud are criminals who fabricate some seemingly reasonable reasons through telephone, mobile phone and other communication tools, and take advantage of the cardholder's greed for gain or nervousness and fear to defraud the cardholder's account funds or card number, password and other account information or trick the cardholder into defrauding the cardholder. A fraud technique in which cardholders go to an ATM to transfer funds. Common ones include: currently popular SMS scams that pretend to be bank notifications or lottery winning notifications, similar to "winning a lottery", "bank card consumption", "car purchase tax refund", pretending to be a mobile employee to "refund mobile phone bills", or making phone calls Scams that falsely claim that cardholders’ relatives and friends are in need of funds due to emergencies, etc.

Tips for prevention: 1. When receiving suspicious letters, emails, text messages, phone calls, etc., you should be careful to confirm, do not take advantage of small things, and do not be nervous or afraid. 2. If you have any questions, you should go directly to the counter of the card-issuing bank, or call the unified customer service hotline of the card-issuing bank (usually starting with "95") or UnionPay's 95516 service hotline.

Question 5: What should I do if I encounter suspicious text messages or phone calls? The first is to identify the pattern of false text messages. The "Bank Card Management Office", "Joint Administration", "National Financial Center" and other institutions in the fraudulent text messages do not exist at all. Please be careful after receiving such text messages.

2. What are the precautions for electricity safety?

There are two main aspects of safety issues in electricity use, one is personal safety, and the other is property safety.

In order to prevent accidents from happening, pay attention when using electricity: (1) Do not stand on the ground to touch the live wire; stand on an insulator and wear insulating shoes and do not allow your body to touch the live wire and neutral wire at the same time. (2) Protect wires, plugs, sockets, lamp holders and electrical insulation parts.

Keep the insulated part dry and do not use wet hands to turn on the switch, plug in or unplug the plug. (3) Do not let the wires come into contact with metal objects, and do not hang the wires on nails to avoid short circuits.

(4) It is forbidden to use copper wire instead of fuse, and it is forbidden to use rubber glue instead of electrical insulation tape. (5) Install an electric shock protector in the circuit and check the sensitivity of the protector regularly.

3. What are the common sense about safe use of electricity?

The summer peak of electricity consumption is coming. With the improvement of living standards and the increase of household appliances, faults caused by overloaded electricity are frequent. occur. In order to ensure the safety of electricity consumption in summer, users should calculate their total electricity capacity before the arrival of summer and compare it with the maximum rated current of the meter and power cord. If it is not enough, they should report it to the power supply department in time and report it to the meter. Increase capacity. It is best not to start high-power appliances such as air conditioners and microwave ovens at the same time, otherwise the instantaneous surge current will be too large and the meter will be burned out.

In areas with complex circuits, the power supply must be installed by professionals, otherwise serious consequences will occur. It is forbidden to use copper wire, aluminum wire, etc. to replace fuses; signal transmission lines cannot be used to replace power cords; medical white tape or transparent tape cannot be used to replace insulating black tape.

During thunderstorm season, residents should actively prevent lightning intrusions. There are four ways to detect lightning intrusion: power supply lines, telephone lines, cable TV lines, and exterior walls or pillars of houses. Therefore, it is important to check the ground wire regularly. Because if a lightning strike occurs, the current generated by the lightning will be conducted to the ground along the ground lead to avoid damage to electrical appliances.

Many families keep the TV in standby mode or turn it off after watching TV. In fact, from the perspective of electricity safety, both methods are unsafe. After watching the TV, you should turn off the power and unplug the power cord. This can effectively prevent the TV from being struck by lightning indoors. By the same token, all electrical appliances should be unplugged after use.

Electrical equipment must be placed in a dry, clean, and ventilated place. Electrical equipment that will not be used for a long time is best to be powered on and heated once a week to prevent fainting from moisture and rust. Many people like to use a wet cloth to wipe the surface of the TV screen while watching TV. This practice is incorrect. Never use a wet cloth to wipe household appliances when the power is on. It is best to adjust electrical equipment to an energy-saving state, keep the air conditioner temperature from being too low, keep the refrigerator door open as little as possible, and keep the brightness of the TV or computer from being too bright.

In summer, people tend to sweat, the body resistance decreases accordingly, and the safety factor against electric shock is relatively weakened. Therefore, you must pay more attention to safety when coming into contact with electrical equipment to avoid electric shock accidents. If you find any abnormal noise, smell, smoke, fire, etc., disconnect the power supply immediately

4. Common sense about safe use of electricity

Common sense about safe use of electricity

< p> 1. The insulation of power lines and electrical equipment must be good, and the live parts of lamp holders, sockets, switches, etc. must not be exposed to prevent electric shock.

2.

Do not connect wires randomly to prevent electric shock or fire.

3. Do not move charged objects while standing on wet ground or wipe live household appliances with a damp rag to prevent electric shock.

4.

The selection of fuses must be reasonable. Do not use copper wire, aluminum wire or iron wire instead to prevent fire.

5.

The household appliances used, such as refrigerators, freezers, washing machines, etc., should be equipped with grounded sockets according to the product usage requirements.

6.

When repairing or replacing the lamp holder, even if the switch is turned off, do not touch it directly with your hands to prevent electric shock.

7. If there is a fire in an electrical appliance, cut off the power first to rescue. Do not put it out directly with water to prevent electric shock.

8.

If you find someone getting an electric shock, you should first try to disconnect the power supply (if you get an electric shock at a high place, you should also take measures to prevent the electric shock victim from falling and being injured) and then provide first aid.

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5. Use it safely What are the basic common sense about electricity?

1. It is forbidden to move running household appliances, such as table fans, washing machines, TVs, etc., with your hands.

2. It is prohibited to repair live wires or equipment at home with bare hands and feet.

3. It is prohibited to touch lamps, switches and other electrical appliances with wet hands or wipe them with wet cloth.

4. It is forbidden to change the three-pin plug into a two-pin plug at will.

5. It is prohibited to pull or connect wires indiscriminately.

6. It is prohibited to add electrical appliances to the original lines without permission.

7. It is prohibited to use unqualified electrical equipment.

8. It is prohibited to use electric irons, hair dryers, electric stoves and other electrical appliances without supervision.

9. It is prohibited to set up private power grids for fishing, theft prevention, hunting, etc.

10. It is prohibited to use lead wire, copper wire, etc. instead of fuse wires as fuses. etc.

6. Common sense about safe use of electricity

1. Why must the lighting switch be connected to the live wire? If the lighting switch is installed on the neutral line, although the light does not light up when it is turned off, the phase line of the lamp head is still connected, and people think that the light does not light up, and they mistakenly think that it is in a power outage state.

In fact, the voltage to ground at each point on the lamp is still a dangerous voltage of 220 volts. If people touch these actually live parts when the lights are off, an electric shock accident will occur.

Therefore, the safety of various lighting switches or switches of single-phase small-capacity electrical equipment can only be ensured if they are connected in series on the live wire. 2. How to install a single-phase three-hole socket correctly? Why? Generally, single-phase electrical equipment, especially mobile electrical equipment, should use three-core plugs and matching three-hole sockets.

There is a dedicated protective zero (ground) jack on the three-hole socket. When using zero protection, some people often only connect the plug head of this hole in the bottom of the socket with the one introduced into the socket. The neutral wire is directly connected, which is extremely dangerous. Because if the neutral wire of the power supply is disconnected, or the live (phase) wire and neutral wire of the power supply are connected reversely, the metal parts such as the casing will also carry the same voltage as the power supply, which will cause electric shock.

Therefore, the dedicated grounding jack should be connected to the dedicated protective grounding wire when wiring. When using zero connection protection, the neutral wire should be specially led from the power supply end instead of using the neutral wire introduced into the nearby socket.

3. Why is it strictly forbidden to bury plastic insulated wires directly in the wall? (1) After long-term use of plastic insulated wires, the plastic will age and crack, and the insulation level will be greatly reduced. When the line is overloaded or short-circuited for a short time, it is easier to accelerate the damage of the insulation. (2) Once the wall gets damp, it will cause large-area leakage and endanger personal safety.

(3) Plastic insulated wires are directly buried, which is not conducive to line inspection and maintenance. 4. Why use leakage protector? The leakage protector, also known as the leakage protection switch, is a new type of electrical safety device. Its main uses are: (1) Preventing electric shock accidents caused by leakage of electrical equipment and electrical lines.

(2) Prevent single-phase electric shock accidents during electricity use. (3) Timely cut off single-phase ground faults during the operation of electrical equipment to prevent electrical fire accidents caused by leakage.

(4) With the improvement of people’s living standards and the continuous increase of household appliances, in the process of using electricity, personal electric shock and accidents are caused due to defects in the electrical equipment itself, improper use and unfavorable safety technical measures. Fire accidents have brought undue losses to people's lives and property, and the emergence of leakage protectors has provided reliable and effective technology to prevent the occurrence of various accidents, cut off the power supply in time, and protect equipment and personal safety. means. 5. What are the main causes of electric shock accidents? Statistics show that the main reasons for electric shock accidents are as follows: (1) Lack of electrical safety knowledge, flying kites near high-voltage lines, climbing high-voltage poles to dig out bird's nests; and picking up low-voltage overhead lines by hand without power outage after they are disconnected. Live wire; touch the live parts with your hands during live wiring at night; touch the damaged rubber cover of the knife switch with your hands.

(2) Violating operating procedures, connecting lines or electrical equipment while live without taking necessary safety measures; touching damaged equipment or wires; mistakenly boarding live equipment; connecting lighting fixtures while live; repairing power tools while live ; Live mobile electrical equipment; Use wet hands to twist light bulbs, etc. (3) The equipment is unqualified and the safety distance is not enough; the grounding resistance of the two-wire-one-ground system is too large; the grounding wire is unqualified or disconnected; the insulation-damaged conductor is left outside etc.

(4) The equipment is in disrepair, and strong winds cut off the lines or knocked down the poles and they were not repaired in time; the bakelite of the rubber cover knife gate was damaged and was not changed in time; the wires of the motor were damaged, leaving the casing charged for a long time; the porcelain bottle was damaged, causing the The phase wire and the pull wire are short-circuited, and the equipment shell is charged. (5) Other accidental reasons, such as walking at night and touching live wires broken on the ground.

6. What rescue measures should be taken in case of electric shock? When an electric shock accident occurs, while ensuring the safety of the rescuer himself, he must first try to quickly remove the electric shock victim from the power supply, and then carry out the following emergency repair work. (1) Remove tight clothing that hinders the electrocuted person’s breathing.

(2) Check the mouth of the person who received an electric shock, clean the mucus in the mouth, and remove dentures if there are any. (3) Immediately carry out rescue on the spot. If breathing stops, use mouth-to-mouth artificial respiration. If the heart stops beating or trembles irregularly, artificial chest compression can be used.

Never interrupt without reason. If there is a second person present at the scene in addition to the rescuer, the following work should be carried out immediately: 1) Provide first aid tools and equipment.

2) Dissuade idle personnel from the scene. 3) Keep the site with adequate lighting and air circulation.

4) Report to the leader and ask a doctor to come for rescue. Experimental research and statistics show that if treatment begins 1 minute after an electric shock, 90% of people can be saved; if treatment starts 6 minutes after an electric shock, there is only a 10% chance of being saved; and if treatment starts 12 minutes after an electric shock, 90% of people can be saved. The possibility of resuscitation is extremely small.

Therefore, when you find someone getting electrocuted, you should race against time and use all possible methods. 7. What measures can be taken to safely use electricity at home? With the popularization of household appliances, it is crucial to correctly grasp the knowledge of safe electricity use and ensure the safety of electricity use.

(1) Do not buy fake and shoddy household products with "three noes". (2) When using home appliances, there should be a complete and reliable power cord plug.

Household appliances with metal casings must be grounded for protection. (3) Switches and fuses cannot be installed on the ground wire and neutral wire.

It is prohibited to connect the ground wire to tap water or gas pipes. (4) Do not touch live equipment with wet hands, and do not wipe live equipment with wet cloth.

(5) Do not connect wires indiscriminately and do not move live equipment casually. (6) When inspecting and repairing household appliances, the power supply must be disconnected first.

(7) When the power cord of a household appliance is damaged, it must be replaced immediately or wrapped with insulating cloth. (8) When a fire breaks out in household appliances or wires, disconnect the power supply first and then put out the fire.

8. How to prevent household appliances from burning? The rated voltage of commonly used household appliances is 220 volts, and the normal power supply voltage is around 220 volts. The voltage rise occurs when the power supply voltage in the power supply line rises instantaneously due to natural disasters such as lightning strikes, the three-phase load is unbalanced and the household line is in disrepair for a long time and the neutral line is broken, or the phase voltage rises due to human miswiring, etc. , which will increase the current and cause household appliances to burn out due to overheating.

To prevent burning of household appliances, we must start from the following aspects: first, try to disconnect the power supply when electrical equipment is not in use; second, renovate old and disrepaired connections.

7. What are the common sense of safe use of electricity?

1. Do not touch or test the inside of the power socket with your hands or conductive objects (such as wire, nails, pins and other metal products); Do not touch uninsulated wire ends; if you find any damaged wire ends, please contact the maintenance personnel immediately.

2. Do not touch electrical appliances with wet hands or wipe them with wet cloth. When you find water leakage around an electrical appliance, temporarily stop using it, and immediately notify maintenance personnel to perform insulation treatment. After the leakage is eliminated, resume use. Avoid using electrical appliances in humid environments (such as bathrooms), and do not allow electrical appliances to get wet, damp, or soaked in water to avoid leakage of electricity and personal injury or death.

3. Electrical appliances such as light bulbs or hair dryers, rice cookers, electric irons, and electric heaters will emit high heat during use. Care should be taken to keep them away from flammable items such as paper and cotton to prevent fires; At the same time, be careful to avoid burns when using it. Do not use high-heat light sources or other electrical appliances inside mosquito nets. Do not install electric lights in wardrobes. Turn off these appliances when unattended.

4. Do not use multiple electrical appliances on a multi-port socket at the same time. Keep the area where the outlet is used dry and do not wrap outlet wires around metal pipes. Electrical extension cords should not be routed through carpets or walls hung with flammable materials, nor should they be placed on iron beds.

5. The electrical plug must be firmly inserted and in close contact. Do not loosen it to avoid heat generation. After using the electrical appliance, unplug the power plug in time; when plugging or unplugging the power plug, hold the plug tightly and do not pull the wire hard to prevent the insulation layer of the wire from being damaged and causing electric shock; if the insulation of the wire peels off, replace it with a new wire or Wrap it with insulating tape. If a trip occurs during the use of an electrical appliance, you must first unplug the power plug, then contact maintenance personnel to find out the cause of the trip, check the electrical failure, and then determine whether it can continue to be used to ensure safety.

6. When encountering thunderstorms, stop using computers and televisions, and unplug outdoor antennas to prevent lightning strikes. If electrical appliances are left unused for a long time, they are easily damaged by moisture and corrosion. They need to be carefully inspected before reuse. When purchasing electrical products, choose qualified products with quality certification. Aging electrical appliances must be eliminated in a timely manner, and it is strictly forbidden to put electrical appliances into service beyond their expiry date.

7. Do not disassemble or install power lines, sockets, plugs, etc. at will. Do not damage public electrical equipment such as safety indicators in the building. Electricity consumption must not exceed the allowable load capacity of wires and circuit breakers. When adding large electrical appliances, they should be inspected and approved by professionals. Large circuit breakers are not allowed to be replaced without permission, so as to avoid failure of protection and causing a fire.

8. Do not dry clothes on wires, and do not wrap metal wires (such as iron wire, aluminum wire, copper wire, etc.) around live wires to prevent the insulation layer from being worn out and leaking electricity, which may cause casualties. ACCIDENT. Stay away from high-voltage power poles, do not fly kites or hunt birds near power lines, and do not dig holes or collect soil near cables and pull wires to prevent poles from falling and breaking lines.

9. If you see a broken wire, do not approach it and report it to the relevant professional department for repair in time. When electrical equipment is found to be out of power, maintenance personnel must be notified immediately for emergency repairs.

10. When an electrical appliance burns out or the circuit is overloaded, some abnormal phenomena usually occur, such as smoke, sparks, strange noises, or the surface of the wire is overheated or even burned. If there is a pungent smell, you should immediately cut off the power supply, check the electrical appliances and circuits, and find maintenance personnel to deal with it.

11. When an electrical appliance or circuit catches fire, you must keep a cool head. First, cut off the power supply as soon as possible, or turn off the main circuit switch in the room, and then use a special fire extinguisher to spray at the fire. If there is no special fire extinguisher around, you can use conventional methods to put out the fire if the power is cut off; if the power supply is not cut off, do not use water or wet things to put out the fire to avoid electric shock accidents.

12. When you find someone getting an electric shock, turn off the power immediately; or use dry wooden sticks or other insulators to separate the person who got the electric shock from the live conductor; do not use your hands to save the person directly; if the person who got the electric shock is unconscious or unconscious, If you stop breathing, you should immediately perform artificial respiration or send to the hospital for emergency rescue.

The above common sense of safe use of electricity must be mastered in daily life. Pay attention to eliminating hidden dangers, and when encountering electrical fires or electric shock accidents, being able to deal with them quickly and calmly will minimize losses.