SUNNYVALE, CALIFORNIA — Internet giant Yahoo is today coming to terms with a cyber-calamity after admitting it is the victim of the biggest data breach in history. <br /> <br />In 2014, hackers gained access to at least 500 million Yahoo accounts, but for some reason we’re only hearing about this now. <br /> <br />The hackers swiped account names, email addresses, phone numbers, birth dates, passwords, and even security questions and answers, tech site CNET reported. <br /> <br />Yahoo blamed an unknown foreign government for the hack, so fingers immediately pointed to the usual suspects of China, Russia and North Korea. <br /> <br />The biggest fear is that hackers will use the stolen data to access accounts on other websites. <br /> <br />So if you haven’t done so already, go and change your Yahoo password. <br /> <br />Cybersecurity experts also recommend not using the same password across different sites. Err, because hacking. <br /> <br />We shouldn’t need to tell you this, but “123456”, “password” and “let me in” are just too obvious and around half a billion Yahoo users are now at risk of finding that out the hard way.