What is the primary risk associated with executable files?

The primary risk associated with executable files is that they can launch malicious code or viruses. Executable files, by their nature, are designed to perform specific functions when run, which means they have the potential to execute any set of instructions encoded within them. This characteristic makes them a frequent target for malware developers who create harmful software that can compromise system security, steal sensitive data, or disrupt normal operation.

When users download or run executable files from untrusted sources, they may inadvertently open a door for malicious attacks that can affect their systems and networks. Hence, maintaining good security practices—such as using updated antivirus software, avoiding uncertain downloads, and exercising caution when executing programs—is essential for mitigating the risks associated with these files.

Other options like requiring extensive system resources, being larger than other files, or crashing the operating system do not inherently represent the primary threat posed by executable files. While an executable file might demand system resources or occasionally cause crashes, these factors are not the main concern in terms of security risks. The potential for executing harmful software is the significant issue that users need to be aware of.