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IObit Malware Fighter protects against PC threats like viruses, ransomware, spyware, Trojans, adware, and worms. It uses the Bitdefender engine with a malware database of 200 million entries. This program allows you to lock your private files using a password; it also blocks ransomware from accessing these files. Browser Protection helps you stay away from phishing websites, prevents your homepage from being modified, keeps you away from annoying ads, and clears tracking cookies automatically.