Browser hijacking Some adware uses Sear4m.xyz to cause a user to click on Sear4m.xyz ads. Once Sear4m.xyz is installed, it changes the default DNS settings of browsers like Mozilla Firefox, Google Chrome, and Internet explorer, and often redirect to various fake websites which are often laiden with viruses. Searchassist is a browser hijacker which piggybacks on other downloads from untrusted websites. It will change the new tab homepage to searchassist.net and opens searchassist on browser start-up. It is stubborn, and if not uninstalled, will repeatedly change the browser tabs and homepage settings. It works with Firefox, Safari, Chrome, and Internet Explorer, though
Pwn2Own not show up. No teams showed up for day three. Chrome and Firefox were not hacked. For 2012 the rules were changed to a capture-the-flag style competition with a point system. The new format caused Charlie Miller, successful at the event in past years, to decide not to attend. At Pwn2Own, Chrome was successfully exploited for the first time. VUPEN declined to reveal how they escaped the sandbox, saying they would sell the information. Internet Explorer 9 on Windows 7 was successfully exploited next. Firefox was the third browser to be hacked using a zero day exploit. Safari on Mac