eBook (PDF)

Insider Risk Management: An O'Reilly Guide

A free O'Reilly guide by security executive Reet Kaur, on why legacy DLP misses the AI-accelerated insider.

Motive, means, and opportunity behind risk

Why DLP alone misses what IRM and DSPM catch

How to investigate, from first signal to story

A blueprint for a proactive insider risk program

Trusted by security teams at

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Why it matters now

Four Numbers Behind the AI-Accelerated Insider

$4.92M

Costliest breach vector

is the average cost of a malicious insider incident, the priciest breach vector (IBM, 2025).

260

Days before detection

days is the average time to identify and contain an insider incident (IBM, 2025).

34%

Insiders behind breaches

of data breaches involve internal actors, according to Verizon's 2024 DBIR.

81%

IRM adoption is rising

of security leaders now run or plan to implement an insider risk program (Ponemon, 2025).

"Insider risk hides in plain sight: it looks like business as usual until it is not."

Insider Risk Management O'Reilly