Advertisers should care that consumers want to know they can visit a Web site using a Chrome, an Edge or a Safai browser without being hacked. At this year’s Pwn2Own hacking contest, the teams found 21 vulnerabilities in Windows, Mac OS X, Flash, Safari, Edge and Chrome, for which they were awarded in aggregate of $460,000. The report found that Safari was attacked three times. Microsoft’s Edge browser proved more difficult to attack compared with its previous browsers, but still successful. Hackers attacked Chrome twice. One attack failed; the other deemed a partial success, according to one report.