Online dating sites can make juicy targets for hackers seeking not only financial data such as credit card numbers, but also material for blackmail, according to Adam Kujawa, head of malware intelligence at the cybersecurity firm Malwarebytes Labs. The company recently reported that online advertisements on Plenty of Fish were hijacked to spread malware. “It’s likely that the attackers were going after users of that site on purpose,” Kujawa said.
Read MoreSelect your language