Of all PDFs used in malicious spam, 42% used obfuscated URLs, 28% hid their URLs in PDF streams, and 7% were delivered in an encrypted form along with a password.
Of all PDFs used in malicious spam, 42% used obfuscated URLs, 28% hid their URLs in PDF streams, and 7% were delivered in an encrypted form along with a password. — This cybersecurity statistic was published by IBM in April 2025. It covers topics including Malicious spam, PDF, URL. The original data appears in IBM X-Force 2025 Threat Intelligence Index. For the full methodology and detailed findings, refer to the original report.
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What does this statistic say?
Of all PDFs used in malicious spam, 42% used obfuscated URLs, 28% hid their URLs in PDF streams, and 7% were delivered in an encrypted form along with a password. This data was published by IBM and covers Malicious spam, PDF, URL.
Where does this data come from?
This statistic comes from IBM X-Force 2025 Threat Intelligence Index, published by IBM on April 17, 2025. You can view the original report at https://www.ibm.com/account/reg/us-en/signup?formid=urx-53633.
What cybersecurity topics does this cover?
This statistic relates to Malicious spam, PDF, URL. Browse more statistics on Malicious spam or from IBM .