What should be done if data is stolen?

Reporting the incident to a supervisor is the appropriate action to take if data is stolen because it ensures that the organization can respond to the breach effectively. A supervisor typically has the authority and responsibility to initiate the necessary steps for damage control, which may include investigating the breach, informing the relevant departments, and implementing measures to secure the data and prevent future incidents.

This action aligns with standard data security protocols, which emphasize the importance of transparency and accountability in handling data breaches. By reporting the theft, the organization can assess the scope of the breach, determine the data affected, and begin to create a response plan, which may also include notifying law enforcement if needed.

The other choices do not promote an effective or responsible response. Ignoring the incident fails to address the serious implications of data theft, which can lead to further risks and liabilities. Notifying all clients immediately may not be the best approach without a clear understanding of the impact of the breach, and deleting compromised data does not resolve the issue or prevent further exposure; it could potentially hinder the investigation process into the theft.