Some asshole initiated a phishing campaign against the users of BTC-e and BitcoinTalk.
They are exploiting the leaked DBs from the major hacks in 2014 and 2015 respectively.

The ones I detected are:
1) Targeting BTC-E users: spoofed emails from LocalBitcoins
2) Targeting BTC-E users: spoofed emails from Blockchain.info
3) Targeting BitcoinTalk users: fake emails from Btc-e with some attached payload.
4) +Several failed login attempts.

The last thing I heard was that the BitcoinTalk DB was being offered for sale in 2016.
Considering this "explosive" sudden campaign my speculation is that either some asshole bought it or it was finally released to the public.

Users of BTC-e and BitcoinTalk who used the same emails to register to all these sites should take extra precaution.
I highly suggest to change not only the passwords of every service (if you haven't already... come on, it's been more than 3 years) AND ALSO change your email addresses.