Microsoft Disables Internet Macros in Office Apps by Default to Block Malware AttacksDavid Chung
Microsoft disables internet-based VBA macros by default in Office applications to prevent phishing and malware attacks. “Bad actors send macros in Office files to end users who unknowingly enable them, malicious payloads are delivered, and the impact can be severe including malware, compromised identity, data loss, and remote access,” Kellie Eickmeyer said in a post announcing the move.
As part of the new change, when a user opens an attachment or downloads from the internet an untrusted Office file containing macros, the app displays a security risk banner stating, “Microsoft has blocked macros from running because the source of the file is untrusted.”
The move arrives less than a month after the Windows maker disabled Excel 4.0 (XLM) macros, another widely abused feature to distribute malware, by default for protecting customers against security threats.
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