Virus Alert Warning
Since the new year I have been getting an increasing number of pop-ups on my MacBook Pro which progressed to MacKeeper pop-ups every few minutes. Today, I have received a Virus Alert Warning from what seems to be a non-Apple source. The link to the warning read http://max-sim.in. The link included a number to call for assistance with the problem. When I called the number, I lost the call and then proceeded to receive calls back from 3 different numbers within a couple minutes (I did not answer these). What steps should I take to figure out what the problem is?
MacBook Pro, Mac OS X (10.7.5), 2.4 GHz Intel Core i5