Explain due care versus due diligence and give an example of each.
Short answer
Due diligence is the ongoing investigation and understanding of risks (knowing what should be done), while due care is taking the reasonable actions a prudent person would take to address them (actually doing it). Diligence is research and oversight; care is implementation and maintenance.
Senior governance roles live and die by this distinction because it maps directly to legal liability. Interviewers ask it to see whether you understand that knowing about a risk and acting on it are separate obligations.
Due diligence: knowing
Due diligence is the investigation, research, and ongoing oversight that builds understanding of an organization's risks and the controls available to address them. Running risk assessments, vetting a vendor's security posture before signing, monitoring the threat landscape, and reviewing audit findings are all due diligence. In short, due diligence is doing your homework to know what should be done.
Due care: doing
Due care is acting on that knowledge — implementing and maintaining the reasonable controls a prudent person would put in place. Deploying the patch you learned you needed, enforcing the policy you wrote, training staff, and keeping controls running over time are all due care. Due care is doing what should be done.
The prudent person rule
Both tie back to the prudent person rule: courts judge whether leadership acted as a reasonable, careful person would have under the same circumstances. An organization that performed diligence (it knew the risk) but skipped care (it never acted) is exposed to negligence claims. Demonstrable due care — documented, consistent, reasonable action — is a core defense against liability.
A clarifying example
A company runs an annual risk assessment and learns a critical server is unpatched: that is due diligence. Actually applying the patch and verifying it: that is due care. Knowing and not acting is the dangerous gap.
What interviewers look for
The clean "diligence = knowing, care = doing" split, the link to the prudent person rule, and awareness that due care is the legal shield against negligence.
Likely follow-ups
- How does the prudent person rule relate to these concepts?
- How can demonstrating due care reduce legal or negligence liability?
- Give an example where an organization did diligence but failed at care.