Unexpected 2FA Codes: Your Cybersecurity Wake-Up Call – 5/5/2024
We’ve all had those moments of confusion when our phone buzzes with a notification that doesn’t seem quite right. If you’ve ever woken up to a text with some random numbers and wondered what it is, you’re not alone.
Getting a code for two-factor authentication (2FA) from a service you use when you didn’t request one deserves some attention. Rather than ignoring the strange message, it’s a good idea to take action to help protect your online accounts.
Understanding 2FA
2FA, or “Two-Factor Authentication,” is an important security feature many apps and websites use. It adds an extra verification step beyond just a password. After you log in, 2FA will text or email you a special code to enter before you’re given access to your account. This acts like a second lock, keeping hackers out even if they somehow steal your password.
Spot the Warning Signs
When you receive a 2FA code you didn’t request, it’s a clear sign that someone is trying to access one of your online accounts. It often indicates that your password has been compromised through a large-scale data breach or a more targeted attack. Hackers may be attempting to log in using your stolen credentials, and the 2FA code is the only thing standing in their way.
Taking Immediate Action
Rather than ignoring the 2FA code or brushing it off, it’s important to take action right away to secure your accounts.
Do not click on any links in the email or SMS. Open a browser, log in to the relevant account, and change your password to something unique and complex. Make sure it’s different from the one you used before and not used for other accounts.
Check if your old password was involved in any known breaches using a tool such as HaveIBeenPwned.com. This can help you identify if you have any other accounts that may be at risk.
Consider changing passwords for any other accounts using the same or similar passwords in case of credential stuffing attacks. This is when hackers use stolen passwords from one breach to try and access other accounts.
Be wary of emails or texts asking you to provide a 2FA code. Legitimate services will never ask for this, and it’s likely a phishing attempt.
This unexpected 2FA code experience is a valuable reminder of the importance of proactive security measures. Two-factor authentication is what saved you this time by blocking the hacker’s attempt to access your account, so take a moment to ensure you’ve enabled it on every site that offers it.
Additionally, using unique, strong passwords for each account is essential to prevent the ripple effects of a single data breach. A password manager can help you generate and store complex credentials, ensuring one compromised password doesn’t put all your other accounts at risk.
While complete online security can never be guaranteed, taking these fundamental steps – enabling 2FA and using unique passwords – goes a long way toward safeguarding your personal information and digital identity.
For more information or assistance with 2FA, contact your local Twin Cities PC Repair professional today at (651) 456-8655 or send a message through my Contact page.
7 Effective Strategies to Avoid Spam Emails – 4/19/2023
Spam emails can be a nuisance, cluttering your inbox with unwanted messages and potentially exposing you to various risks, such as phishing attacks or malware. Thankfully, there are several strategies you can employ to avoid spam and keep your inbox clean. In this article, we will explore seven effective methods that can help you steer clear of spam emails.
Use a Reliable Email Provider
Choosing a reputable email provider is crucial for avoiding spam. Providers like Gmail, Outlook, or Yahoo Mail have advanced filters that automatically detect and redirect most spam emails to your junk folder. Consider switching to one of these providers if you’re currently using an unreliable email service.
Be Selective with Online Registrations
When signing up for online services or making purchases on the internet, be cautious about sharing your email address. Only provide it to trusted sources and take the time to read their privacy policies regarding data usage.
Don’t Reply or Click Suspicious Links
If you receive an unsolicited email from an unknown sender or a suspicious-looking message from someone claiming to be familiar, refrain from replying or clicking on any links within the email. These could lead you down the path of malware installation or phishing attempts.
Utilize Disposable Email Addresses
Consider using disposable email addresses when signing up for newsletters, promotions, or online forums where providing an email address is necessary but not necessarily trustworthy in terms of data protection.
Enable Two-Factor Authentication (2FA)
Enabling 2FA adds an extra layer of security by requiring a second verification step when logging into your accounts – typically through a text message code sent to your phone number associated with the account—which helps prevent unauthorized access even if spammers get hold of your login credentials via phishing attempts.
Regularly Update Your Antivirus Software
Keeping your antivirus software up-to-date is essential as it helps detect and block potential threats before they reach your inbox.
Be Mindful When Unsubscribing From Emails
While unsubscribing from unwanted promotional emails can be helpful, exercise caution when doing so; only unsubscribe from reputable sources that provide legitimate opt-out options in their emails’ footer section.
By following these strategies consistently and being vigilant about protecting yourself against spammers’ tactics, you can significantly reduce the amount of spam in your inbox and minimize potential risks associated with malicious content present in such emails.
Need help with anything email-related? Give me a call at (651) 456-8655 or visit my Contact page on my website!
News of data breaches is all too common. This company apologizes for six million accounts breached. That company acknowledges hackers accessed 35,000 users’ personal identifiable information. But the question that probably matters most: Is your data breached, too?
The company should contact you if your information is in a data leak, but you can’t rely on that. You can also find out if your phone number or email address has been leaked by visiting https://haveibeenpwned.com/.
HaveIBeenPwned has uploaded various breaches and consolidated the information to make searching easy. Enter your address and get a list of breaches that compromised that email. You’ll get a summary paragraph as well as a description of data compromised in each breach.
It is not uplifting reading!
Next, the question is what to do about your breached information.
Steps to Better Security
First, change your passwords for those breached accounts. If you use that same password to access other accounts, change those passwords, as well, even if they are not listed as leaked.
Always avoid reusing passwords. Yes, it can be a hassle to remember many different access credentials, but you risk exposing many accounts if you keep reusing one email address and password combo over and again.
Make using unique passwords for all accounts easier by using a password manager. A manager can store your many passwords in one place and generate strong ones to use. You can often download an app to your mobile device, which gives you the convenience of filling in your credentials when you’re on the go, too.
The next step is to use two-factor authentication (2FA).
Understanding 2FA
This adds a layer of difficulty for hackers trying to access your accounts. Even if they had your username and password, they would need a second way to verify your identity.
Using 2FA requires you to provide one of the following before you can gain access:
something you know (e.g. the answer to a secret question);
something you have (e.g. your smartphone);
something you are (e.g. your fingerprint).
A bad actor would need to have not only your leaked credentials but also your other “something.”
A common approach to FA is an SMS text message or voice-based authentication. You enter your credentials, then the site follows up with a text or phone call providing a separate code you must then enter. This is not the best method, however. Scammers can hack the SIM card associated with your device, and then use your number to make and receive calls and texts.
Software tokens for 2FA are a safer solution. You’ll download and install an application on your phone (e.g. Google Authenticator, Authy or Okta Verify). It can generate a unique verification code that is valid only for 30-60 seconds.
Want to learn more about password management and soft-token 2FA. We’re here to help. Contact us today at (651) 456-8655 or send us a message from our Contact page.
Two-Factor Authentication, How Hackers Get Around SMS – Every time you’re online and a site sends a separate code to check your identity, you’re using two-factor authentication. It’s become the norm. So, of course, hackers have figured out how to get around this, too. This article shows you how they do it and how to stay safe.
With billions of usernames and passwords leaked, access credentials everywhere are at risk, especially if you are reusing your log-in information on more than one site (don’t do it!).
Business websites want to offer a secure user experience, so two-factor authentication (2FA) has become the norm. It’s meant to help stop automated attacks in which bad actors use the leaked usernames and passwords.
Still, if the site you’re visiting uses short message service (SMS) to send a one-time code to your phone, you could still be at risk.
Hackers, using information they have from a data leak, can call your telephone company. They use your name, date of birth, and other identifiers available on the Dark Web, to impersonate you. Then, say you’ve lost your phone, they transfer your phone number to a device with a different SIM card.
That means when the one-time SMS code gets sent your phone number, the message will instead go to their device.
Android Users Also Beware
On Android devices, hackers have an easier time getting access to text messages. If they have access to your leaked Google credentials, they can log into your Google Play account. From there, it’s simply a matter of installing a message-mirroring app on your smartphone.
The app synchronizes notifications across your different devices. It’s for when you really need to be connected, and you’ll be able to see your phone’s SMS alerts on your tablet!
The app won’t work unless you give it permission when prompted to do so, but too many people don’t stop to read alerts from their own accounts: they assume it’s another necessary update and go on with their day. Otherwise, the hacker might call you in a social engineering ploy pretending to be a legit service provider. They’ll be familiar to you, so you’re more likely to listen when they ask you to give permission.
Again, when the one-time SMS code gets sent to your phone, because of the message-mirroring app, the hacker’s device will also receive the code.
What Can You Do to Protect Yourself?
It starts with using unique passwords for all sites you visit. Worried you’ll forget them? A password manager can keep all your access credentials in one secure place for you.
You should also confirm that your credentials haven’t been compromised. If you use Google’s password service, you can head to the password manager site and tap “check passwords” to see if there are any issues. On Firefox, head to the Firefox Monitor page and “Check for Breaches.” On Safari, click on Preferences, and then on Passwords to see what recommendations they have for your security.
Change any passwords that have been involved in a leak!
To avoid the SMS concern specifically, avoid using one-time SMS codes to verify your identity. Instead, you can use a non-SMS authentication tool such as Google authenticator, which provides two-step verification services within the app itself.
Here’s some additional information you may find helpful:
Need help learning if your credentials have been leaked? Or want assistance setting up more security for your online activity? We can help. Contact our IT experts today at (651) 456-8655 or visit our CONTACT page.
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