Russian organized crime has stolen  1.2 Billion usernames and passwords, affecting half a million websites.

This is five times bigger than that breach at Target stores last year.

The Russian crime ring has gathered the largest known collection of stolen Internet identities, not only the 1.2 million username and password combinations, but also 500 million email addresses.

The Milwaukee-based company Hold Security is who discovered this breach.

 The victims' identities have not been disclosed, but a source reveals that some high-powered companies know their data was stolen.

 “Hackers did not just target U.S. companies, they targeted any website they could get, ranging from Fortune 500 companies to very small websites,” officials from Hold Security said. “ Most of these sites are still vulnerable.”

Advice? You may want to start changing those passwords, and even usernames.