An organization has implemented a new data loss prevention (DLP) solution. As part of control monitoring, the risk practitioner is reviewing the DLP logs. They notice a significant number of alerts indicating attempts to transfer sensitive data to unauthorized external cloud storage services, but these transfers were successfully blocked by the DLP. What is the MOST important implication of these findings for the organization's risk posture?
- AThe DLP solution is effectively acting as a preventive control, but the underlying risk behavior persists.
- BThe alerts indicate a successful data breach, requiring immediate incident response.
- CThe organization's training on data handling policies is highly effective.
- DThe DLP solution is ineffective and needs to be replaced immediately.
Show answer & explanationAnswer & explanation
Correct answer: A. The DLP solution is effectively acting as a preventive control, but the underlying risk behavior persists.
The DLP successfully blocked the transfers, demonstrating its effectiveness as a preventive control. However, the 'significant number of alerts' for *attempts* indicates that the underlying user behavior or awareness, which leads to these attempts, is still a concern. This means the risk of unauthorized data transfer persists, even if the control is currently preventing the actual loss.
Why the other options are wrong
- B. The transfers were 'successfully blocked,' meaning a data breach did *not* occur. This implies prevention, not a breach.
- C. The significant number of *attempts* suggests that training on data handling policies is likely *not* highly effective, as users are still trying to perform unauthorized transfers.
- D. The DLP is effective because it successfully blocked the transfers; it does not need immediate replacement.
Control Effectiveness vs. Underlying Risk
Distinguishing between a control's operational effectiveness in stopping an event and the continued presence of the underlying risk or behavior that necessitates the control.
- A control can be effective in preventing an event, but the attempts may indicate a persistent underlying issue (e.g., user error, malicious intent).
- Effective controls reduce residual risk, but do not eliminate the inherent risk.
- Monitoring control output (e.g., blocked attempts) can provide insights into risk trends and control gaps.
- Addressing underlying causes (e.g., training, process improvement) is crucial even with effective controls.
Memory trick: Blocked Attempts Mean Control is Working, But What's Causing the Warning?