By Micke - May 22, 2013 - safeandsavvy.f-secure.comWhat is two-factor authentication and why should I care?
Today we need accounts for all the social media we are on, the mail accounts, accounts for on-line shops, the bank, the workplace, you name it… Frankly speaking, I have no idea how many on-line accounts I have. And I can make one confession. I use the same password on some of them, even if the important ones naturally have strong unique passwords.
And here we are at the core problem with passwords. They should be complex enough to withstand brute force and dictionary attacks (that is when hackers systematically try a large number of passwords in hope of finding the right one) and they should be different on all systems you use (to limit the damage if one account is compromised).
Many complex passwords and limited brain capacity, that doesn’t work. There are systems to create and remember many complex passwords, but many people aren’t motivated enough to use them. That’s one reason why two-factor authentication is spreading fast.http://safeandsavvy.f-secure.com/2013/05/22/what-is-two-factor-authentication-and-why-should-i-care/