Google has identified a critical security issue in Gmail that could affect 1.8 billion users. The issue is a vulnerability in the way that Gmail handles email verification. This vulnerability could allow an attacker to send emails that appear to be from a legitimate sender, even if the sender's email address is not actually verified.



Google has assigned this issue a P1 severity rating, which is the highest severity rating that Google assigns to security issues. This means that Google considers this issue to be a very serious threat and is working to fix it as quickly as possible.

In the meantime, Gmail users should be aware of this issue and take steps to protect themselves. Here are some tips for protecting yourself:

  • Be suspicious of any emails that you receive that appear to be from a legitimate sender but that you did not expect.
  • Do not click on any links or open any attachments in emails that you are suspicious of.
  • If you are unsure whether an email is legitimate, you can contact the sender directly to verify.

Google is working to fix this issue as quickly as possible. However, until the issue is fixed, Gmail users should be aware of the risks and take steps to protect themselves.