Which of the following is NOT a type of digital crime?

Social media updates are primarily a form of communication and self-expression that individuals engage in on various platforms. They do not inherently involve criminal activities or malicious intent, which distinguishes them from the other options listed.

In contrast, identity theft involves stealing someone's personal information to commit fraud; spyware installation refers to the unauthorized placement of software that can monitor or compromise someone's data; and cyberstalking and harassment involve using digital means to stalk, harass, or threaten individuals, which are all classified as digital crimes due to their illegal nature and the harmful impact they have on victims.

Thus, social media updates do not fall within the realm of digital crime, making this option the correct response to the question.