In 2007, 2010, and 2011, developers released a series of tools called JailbreakMe that used security vulnerabilities in Mobile Safari rendering to jailbreak the device (which allows users to install any compatible software on the device instead of only App Store apps).[195][196][197] Each of these exploits were quickly fixed by iOS updates from Apple. Theoretically these flaws could have also been used for malicious purposes.[198]