According to The Times of India; Russian hackers have disclosed the email IDs and passwords of more than 4.93 million Google accounts. All Google products like Gmail, Drive, Plus, YouTube, Maps etc use the same Google account password.
A user, named Tvskit has placed all the account details on bitcoin forum btcsec.com. It has been stated on the forum by Tvskit that approximately 60% of the passwords are still active.
On the other hand, the Google in a blog post, though, disproved the argument and believed that merely 2% of the passwords still work and also reports that its computerized anti-hijacking systems would have blocked many of the login attempts. Whereas admitting the reveal, Google believed that this is not due to a violation in its own systems.
The Google explains that frequently these credentials are obtained all the way through a combination of other sources. Such as, if someone re-use the same username and password across various websites, and eventually one of those websites gets hacked, then your credentials possibly will be used to log into the others. Or else hackers can use malware or phishing systems in order to detain login IDs and passwords.