Opening a PDF file received through unsolicited electronic correspondence from an unknown source represents a potential security risk. Such files can contain malicious code designed to compromise a computer system or extract sensitive data. For instance, a seemingly innocuous invoice attachment could, upon opening, initiate the installation of malware without the user’s knowledge.
The act of opening attachments from dubious origins has historically served as a primary vector for the dissemination of viruses, worms, and other harmful software. Recognizing this potential threat is vital for maintaining personal and organizational cybersecurity. Individuals should prioritize verifying the sender’s authenticity before interacting with any email attachment.
