IObit Malware Fighter Overview. IObit Malware Fighter. IObit Malware Fighter is a powerful all-in-one anti-malware and anti-virus software. It defends against the latest cyber threats that may often be missed by other security tools, including spyware, adware, ransomware, Trojans, keyloggers, bots, worms, hijackers, and viruses, while shielding your privacy from unauthorized access.
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