But Avast's anti-theft and call-blocking tools didn't work well, and both apps show lot of ads - unless you pay them not to. Several apps found in the Google Play Store were found to be harboring the Joker malware.Īvast Mobile Security and McAfee Mobile Security offer a lot of features for free and do fairly well in malware-detection tests. New Android malware roots phones using five known security flaws, using apps that seem to work fine. Google has deleted 151 scam Android apps, but 10 million people will have to remove them manually.
