1 billion identifiers scattered all over the Internet
The "Have I Been Pwned" site, which enables you to check whether your identifiers have been compromised by a hacking attack, has made a worrying discovery: the circulation online of two lists containing over a billion account identifiers in total.
On Have I Been Pwned, enter your e-mail address to verify its security. If the results show red and include lists headed either "Exploit.in" or "Anti-public Combo", then the accounts you have created with this e-mail address are under threat. By extension, the same thing applies to any other account that is displayed in red in the results.
You immediately need to change your passwords linked to this address and make sure that you use a different password for each account. In fact, with a data leak of this kind, all of your accounts using the same password are in danger.