Over 50,000 email and password combinations were posted to Pastebin earlier this week.   However, Twitter has reported that most of the accounts on this list apparently belong to spammers, with more than 20,000 being duplicate accounts.

As a precautionary measure, Twitter sent password reset emails to all users listed in the five-page online dump.

The source behind this breach is unknown, although some security experts allege that the attack was conducted to alarm Twitter’s 140 million users that their accounts could be readily exposed.

So what’s the lesson learnt?

Ensure that you regularly change your passwords and use caution and common sense while navigating through the cyber highway.