After learning about blockchain security technologies and the potential security risks in blockchain networks, we will then learn about the possible security risks and countermeasures at the individual level.
Common Security Risks
Common security risks on the Internet today include but are not limited to phishing, brute force cracking, malware, data leakage, etc. These security risks can easily result in personal data loss, asset loss and other consequences if not paid more attention in daily use.
Phishing
Phishing is a very common type of fraud that impersonates other legitimate and compliant entities in an attempt to obtain user credentials. Fraudsters typically send users carefully crafted emails or text messages containing content that often mimics the design and name of some trusted, well-known platform, and then use fake hyperlinks to ask users to provide their credentials, including account names, passwords, etc. Once access to user credentials and other sensitive information is gained, it can lead to private key leakage, which in turn can lead to losses for the user and the blockchain network. There is also a similar risk of impersonating an official account on some instant messengers to contact users and then accessing important information through phishing links.
Brute-Force Attack
Brute force cracking is a relatively primitive attack method that is usually used to directly target login passwords. A brute force attacker will automatically try all possible combinations of passwords through the tool until the correct password combination is found. This method is suitable for cases where the login email and username are known, and the password is weak and easily guessed. Brute force cracking is often used to crack passwords for online accounts, such as email, social media, and bank accounts.
Malware
Malware, also known as rogue software, includes any software that is detrimental to the user's interests and ranges from simple computer worms, Trojan horses, complex computer viruses, etc. Malware may enter the system through disguised official websites, email attachments, downloadable files, and other channels. The installation of malware may cause significant damage to the system, such as file encryption, data deletion, data theft, etc., which in turn may result in the loss of personal assets.
Data Breach
A data breach is the release of private information, confidential information or various sensitive information into an insecure environment. Data leakage can be caused by human accidents or by deliberate external attacks. Data leaks can be caused by system vulnerabilities, server vulnerabilities, weak passwords, and other issues. A number of data breaches occur every year and take place in industries including finance, education, and health care. These data breaches can lead to problems such as identity theft, leakage of corporate information, or property damage in minor cases.
How to Handle Security Risks
These are only some of the security risks listed above, but they are very common on the Internet, so we need to be aware of basic information security.
Avoid using purely alphabetic or numeric passwords, but create strong passwords that cannot be easily broken. Strong passwords should consist of upper and lower case letters, numbers, and symbols. In addition, use double authentication (2FA) to add a layer of protection to your account by using authenticators, emails or cell phone verification codes.
Do not easily click to open or download attachments or links contained in text messages, emails, or messages from unknown sources, and do not disclose sensitive information such as passwords and verification codes to anyone you do not know or trust.
Regularly detect and remove malware from frequently used devices through antivirus software, and regularly update the browsers, chat tools and other software you use to avoid using versions with security vulnerabilities.
Disclaimer
-
Crypto investment involves significant risks. Please proceed with caution. The course shall not be considered investment or financial advice.