Security researchers have identified that a widespread LinkedIn malicious hacking campaign has seen many users locked out of their accounts worldwide.
Some users who have had their access to their LinkedIn accounts blocked by the cybercriminals changing their passwords have been pressured into paying a ransom, according to a report from Cyberint, and threatened with permanent account deletion.
In other instances, LinkedIn users report that they have received notification emails from LinkedIn telling them that their accounts have been temporarily locked due to "unusual activity". These appear to be a precautionary step from the site, when they see multiple attempts to break into an account, perhaps through the use of brute force password attacks or due to multiple attempts to defeat the two-factor authentication (2FA) protection some users have enabled on accounts.