“A new trend, which was also pointed out in our Q1 cybercrime report, is the combination of PUPs and Tech Support Scams. Most of these PUPs are so-called system optimizers. This is worrying as the damage done by PUPs was limited or we would have marked them as malware. By adding Tech Support Scams to their portfolio the possible damages have increased considerably.”
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Source: System optimizers turning to Tech Support Scams – Malwarebytes Labs | Malwarebytes Labs