Which cybersecurity threat can lead to information being stolen or damaged without a user ever being aware?

An SLA policy violation is a contractual or operational failure, not a cybersecurity threat that steals or damages information.

Malware encompasses a broad category of malicious software - including spyware, trojans, and keyloggers - that can silently infiltrate systems, steal sensitive information, and cause damage entirely in the background. Because these programs are engineered to avoid detection, users frequently have no indication that their data has been compromised. This covert behavior is a defining characteristic of malware threats.

Ransomware explicitly notifies victims of the attack by displaying a ransom demand, making it a visible rather than covert threat.

Incomplete data input is a data quality or user error issue and does not represent a cybersecurity attack that steals or damages information.