The event Pwn2Own, which was organized by HP(Hewlett-Packard) Enterprise and Trend Micro, was held at Vancouver, Canada. The main victims of this test are Appel Safari, Google Chrome and Microsoft Edge. This security researchers or experts was able to hack Google Chrome and Internet Explorer on Windows, and Safari on Mac OS X, with the highest award that has been given in the history of this competition. There were five teams of hackers in two days of competition, three teams from Chinese tech company Tencent, a team from Qihoo 360, and a solo contestant JungHoon Lee from South Korea. 21 new flaws were found in which Windows came out as the most flawed, and five flaws were found in Mac OS X. Tencent’s Team Sniper won $142,500 and Qighoo 360’s 360Vulcan Team won $132,500, but, the solo contestant JungHoon Lee manage to caught the bigger amount of money $145,000 among them all. Security experts found that Microsoft Edge is not as flawed as its predecessor Internet Explorer, thanks largely to its new code base. However, the hacker teams are successfully able to attack Safari of Mac OS X three times. Firefox was not involved in this event, since it did not made any major developments to its security during 2015 like Linux. But, among them all Google Chrome came out as the best, because the hacker teams attempted two attacks on Google Chrome, from which One failed, and the other attack worked half or partly. However, each team manage bag an splendid amount of money for their hacking efforts, but, security Team Sniper won special prize for a successful attack on the Microsoft Edge in just two minutes. As usual, all faults are reported to their respective manufacturers.