Hello! I'm Shemhaza, your Sentinel. Today, I'm going to talk about the strongest shield to protect your important accounts like SNS and online banking from cybercrime: 'Two-Factor Authentication'.
Do you think 'I've set a password, so I'm safe!'? The truth is, no matter how complex your password is, it's no longer enough in today's world. The internet is evolving daily, and unfortunately, the tactics of malicious actors are becoming more sophisticated. In such an environment, 'Two-Factor Authentication' is what I strongly recommend you set up to protect your valuable information. With this, even if your password is leaked, the worry of your account being immediately hijacked will significantly decrease!
Passwords Alone Are No Longer Safe! How to Protect Accounts from Being Targeted
Two-factor authentication is a system where, in addition to your 'password,' you verify your identity using another method when logging in. It's like having two keys. Why is this so important now?
- ▸① An era where passwords are easily compromised: Do you reuse the same password across many services? If your password is leaked from one service, there's a tactic called 'credential stuffing' where malicious actors can easily log into other services.
- ▸② The trap of fake websites: Have you ever accidentally entered your password into a fake website disguised as a delivery service or bank? Malicious actors will then try to use that entered password to log into the real site.
- ▸③ SMS authentication is also not foolproof: Even SMS (message to mobile phone) authentication codes, commonly used in two-factor authentication, are increasingly being exploited through tactics like 'SIM swap attacks' or by tricking users into entering codes on fake websites.
As such, there are many dangers that cannot be prevented by passwords alone, which is why an additional layer of authentication is indispensable.
Checkpoints for Protecting Yourself
Use two-factor authentication wisely to protect your and your family's valuable information!
- ✓Check the settings screen of your SNS, online banking, shopping sites, etc., for 'Two-Factor Authentication' or '2-Step Verification' options.
- ✓When setting up two-factor authentication, prefer using an 'authenticator app' (like Google Authenticator, Microsoft Authenticator) over SMS authentication. Authenticator apps are incredibly convenient tools that display a new passcode every set period, even without an internet connection.
- ✓The 'QR code' or 'setup key' that appears when setting up an authenticator app may be needed for device changes, so make sure to write it down and store it in a safe place, or choose an app with cloud backup functionality.
- ✓If you receive a suspicious notification, such as 'two-factor authentication code has been sent,' even though you haven't tried to log in, absolutely do not enter that code. It might be an attempt by a malicious actor to steal your information.
Where to Seek Help When in Trouble
If you suspect your important account has been hijacked or you've fallen victim to a scam, please contact the following helplines immediately. In the case of unauthorized credit card use, it's also crucial to contact your card company right away. Don't worry alone; consult with a trusted expert.
Consumer Hotline (188) or Police Consultation Service Phone (#9110)