According to a report from RiskIQ, the number of malware apps residing in the Google Play store has actually gone up quite significantly over a two-year span. The data found that more than 42,000 apps contained some form of malware last year, up from just 11,000 a few years before. Google’s ecosystem has had a long and stories history of containing malicious software, and it appears the search giant’s effort to stomp out the fires have not been successful.