In 2024, the most common type of file used by adveriaries for malicious intent, was PDF. In over 45 percent of detections, PDF files were used as attachments to deliver malware. Meanwhile, HTML ranked second, with 17.4 percent, while ZIP attachments accumulated to 10 percent of malicious files.
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IBM. (April 17, 2025). Most frequently detected malicious file type worldwide in 2024 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 20, 2026, from /statistics/1614396/malicious-file-types-worldwide/
IBM. "Most frequently detected malicious file type worldwide in 2024." Chart. April 17, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 20, 2026. /statistics/1614396/malicious-file-types-worldwide/
IBM. (2025). Most frequently detected malicious file type worldwide in 2024. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 20, 2026. /statistics/1614396/malicious-file-types-worldwide/
IBM. "Most Frequently Detected Malicious File Type Worldwide in 2024." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 17 Apr 2025, /statistics/1614396/malicious-file-types-worldwide/
IBM, Most frequently detected malicious file type worldwide in 2024 ÌÇÐÄÆƽâ°æ, /statistics/1614396/malicious-file-types-worldwide/ (last visited July 20, 2026)
Most frequently detected malicious file type worldwide in 2024 [Graph], IBM, April 17, 2025. [Online]. Available: /statistics/1614396/malicious-file-types-worldwide/
