Google has a message for webmasters serving up malware and it goes something like this: Fool me once, shame on you. Fool me twice, shame on me. Going forward, Google is plugging what it calls a “gap” in its online protection scheme that allowed sites serving up malicious content to become repeat offenders without much repercussion or warning

Source: Hot Hardware – Google Brands Malware Sites With ‘Repeat Offender’ Tag And 30-Day Timeout