Security Questionnaires Remain Central to Vendor Due Diligence Despite Known Weaknesses

The Burden of Security Questionnaires

Security and GRC teams dedicate substantial time to completing security questionnaires, with some companies having full-time roles solely for this task. These forms are often a prerequisite for closing business deals, meaning delays in completion can halt revenue generation.

A Flawed System of Trust

A double standard exists where companies both complete and send out these questionnaires. Teams filling them out recognize the limited scrutiny their 'yes' answers receive, yet they rely on similar responses from their own vendors. This reliance persists because, historically, there have been few better alternatives for assessing vendor security.

Central to Business Transactions

When Company A sells to Company B, B sends A a questionnaire and security terms. Company A completes these, and the deal progresses. Conversely, when Company A buys software, it subjects its vendors to the same process, using the questionnaire as a basis for trust. Every company acts as both a responder and an assessor in this chain.

Supplements Don't Replace the Core

While robust security programs supplement questionnaires with SOC 2 reports, ISO certificates, penetration tests, and external security ratings, the questionnaire itself remains the primary gatekeeper for deals and the official record of due diligence. Business trust largely depends on a vendor's self-reported account of its security posture.

Intention vs. Control

A questionnaire answer represents an intention or a snapshot of a setting at a specific time, not a verified control. A 'yes' answer from a vendor does not inherently make a security measure true or effective, a fact understood by those who complete these forms themselves.