Last year's highly publicized Yahoo and LinkedIn breaches exposed millions of users' passwords to the public and saw them for sale on the dark web. Researchers at behavioral firewall company Preempt have analyzed the leaked LinkedIn passwords to find out how many were weak before the breach occurred. The findings show that 35 percent of leaked LinkedIn passwords -- over 63 and a half million -- were already known from previous password dictionaries, making them vulnerable to cracking offline by reference to a word list of known or previously used passwords. In addition 65 percent could be easily cracked with brute…
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