It's a good idea to enroll in those services to ensure you're alerted to any suspicious activity being conducted in your name. Norton is also offering access to credit monitoring services for affected users, according to its letter to customers. But the safest thing to do is to change underlying passwords and flip on two-factor authentication. At the very least, immediately change your main Norton passwords. Make sure also to enable two-factor authentication on any account that offers it - including your Norton account - to give yourself an added layer of protection.īut what about Norton users who haven't been notified that they've been targeted? To be as safe as possible, the same routine applies, unfortunately. Then move on to others, like email accounts and social media accounts, before continuing with your potentially less-critical online accounts. Start with the most important accounts first, like anything related to finances, work or health. Then you should change the passwords to every single one of your other online accounts, making sure to create a unique, strong password for each one.

If you've received Norton's notification, then you'll need to immediately change your Norton account password as well as your Norton Password Manager password. 22, Norton was able to determine that the attack began around Dec. Norton's intrusion detection systems detected an unusual number of failed login attempts on Dec.

Attackers would also have access to any credit card details or secure notes saved in your vault.

You could get locked out of all your accounts, and depending on the account logins you have stored in your vault, extremely sensitive personal information may be exposed to people who shouldn't have access to it. If attackers are successful in gaining access to your vault, they'll have access to the usernames and passwords for all the online accounts you have stored in your password manager.

If your Norton account was compromised in the attack and you use the same password for your password manager vault, then you're especially at risk of having your vault data compromised by an unauthorized party. The success of such an attack relies on people's tendency to reuse passwords across multiple online accounts. In a credential-stuffing attack, an attacker uses a list of stolen username and password combinations to deploy an automated process that attempts to access other online accounts using the same login credentials.

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