SaaS Security Questionnaire: The Controls Enterprises Expect

Key Takeaways

• Enterprise questionnaires often ask for a similar control set no matter which format they use, covering phishing-resistant multi-factor authentication (MFA), data encryption, managed devices, endpoint protection, logging, tested incident response, and clean offboarding.
• Strong responses need two kinds of proof. Settings show a control exists, and history shows it ran on schedule.
• Reviews get harder when a control lives in policy but doesn't run on every account and device.
• A pre-built packet with a one-page security overview, an incident response process, a subprocessors list, and ready evidence turns a two-week scramble into a one-meeting review.
• Controls can drift silently between reviews. Continuous enforcement keeps year-two answers as accurate as year-one answers.

An enterprise prospect is ready to sign, then procurement sends over a SaaS security questionnaire instead of the contract. Row one asks what percentage of your devices have encryption enforced right now. Not whether a policy requires it. A number, with evidence behind it. Most of the rows that follow ask for the same kind of proof about a different control.

Questionnaires are predictable, though. Whether the buyer sends a standard framework or a homegrown spreadsheet, they ask about the same control areas. Deploy those controls and keep proof on hand, and you can answer in days. Start from scratch, and the same review can cost weeks per deal.

See what your evidence looks like before a prospect asks for it. Get a live demo to see how Zip keeps these controls enforced.

What a SaaS Security Questionnaire Asks

Every enterprise buyer seems to send a different form, whether it's a named framework, a homegrown spreadsheet, or whatever their procurement team is used to, and some of these keep getting longer. The CAIQ alone is already past 280 questions. Strip away the branding and the page count, though, and the same small set of controls keeps showing up:

Control	Evidence to Have
Multi-factor authentication (MFA)	Enforce it on every account, and use phishing-resistant methods for admin access
Access control and least privilege	Assign role-based permissions, document lifecycle processes, and review privileged accounts regularly
Encryption	Encrypt data at rest and in transit, and enforce full-disk encryption by policy on every endpoint
Mobile device management (MDM)	Enroll every device and keep a documented fleet inventory
Endpoint detection and response (EDR)	Deploy agents and keep them healthy on all in-scope devices
Logging and monitoring	Collect and review audit logs, and keep recent access-review evidence on hand
Incident response	Maintain an incident response plan with escalation and notification timelines, and test it regularly
Offboarding	Revoke access promptly and keep an audit trail
Subprocessor management	Keep a current list of third parties that touch customer data, and hold them to equivalent standards
Business continuity	Document recovery time objective/recovery point objective (RTO/RPO) targets and test your continuity plan regularly

Physical security questions can catch lean teams off guard, since badge readers and server room access don't mean much when your infrastructure lives in someone else's data center. Point to your cloud provider's own certifications instead, whichever one hosts you: Amazon Web Services (AWS), Google Cloud Platform (GCP), or Azure. Pair that with a SOC 2 Type II report, and most business-to-business (B2B) SaaS reviewers move on. Skip the report, and expect more follow-up questions instead.

Configuration Proves It Exists, History Proves It Ran

Write "we encrypt data at rest" on a questionnaire, and the reviewer still has to take that word for it unless something backs it up. Two kinds of evidence turn that statement into something they can verify:

Evidence Type	What It Proves	What Counts
Configuration evidence	The program exists	Written policies, MDM configuration profiles, EDR policy exports, and identity provider settings showing the MFA enforcement rule
Execution history	The process runs on schedule	Monthly asset inventory snapshots, encryption status reports, EDR coverage reports with follow-up on stale agents, and checks that match every device to a current employee

A signed policy with no login history looks like it went into effect the morning the questionnaire arrived. A system log with no policy behind it could just as easily be one admin's personal setting instead of a company rule. Reviewers ask for both because either one alone is easy to fake.

MFA is a good example of what this looks like in practice. Say your policy requires MFA on every login. Proof steps built for CMMC, the security check required of U.S. Defense Department contractors, call for a live demo of that login prompt plus the matching entry in the system log. When the policy, the prompt, and the log all agree, the control passes.

The Most Common Slowdown Is Partial Deployment

The most common slowdown in reviews comes from a control that exists on paper but doesn't run everywhere. MFA policy often outruns MFA enforcement, and teams switch on logging before they set up retention and review. "MFA turned on" and "MFA enforced for every account without exclusions" are different claims.

That difference has a name. Settings that were correct at deployment quietly stop matching what's running, a problem known as configuration drift. It shows up in a few predictable ways:

• Scan agents stop reporting, and a device that once passed drops off the record without anyone noticing.
• New devices connect before anyone applies hardening, joining the fleet unprotected.
• A routine settings change breaks encryption or logging somewhere else, with nothing flagging it.

Zip catches configuration drift by comparing what your identity provider, MDM, and EDR each report about the same device, every day instead of once a quarter. A dashboard that just repeats whatever each tool claims doesn't help when one of them is wrong. Zip cross-checks the three against each other instead, and corrects the mismatch on its own.

When a company is missing one of those tools entirely, say no EDR on part of the fleet, Zip buys it in the company's name, configures it, and brings it online. The fleet gets full coverage either way, whether the tool already existed or Zip had to add it.

Phoebe's own compliance dashboard said "covered," even though MDM and EDR weren't running across its whole fleet. The dashboard could only be as accurate as the tools feeding it. After deploying Zip, it reached 100% device coverage in three days with zero engineering involvement.

Know Your Numbers Before the Questionnaire Arrives

Reacting from scratch means digging up proof while the buyer's procurement team waits on you. The real number behind MFA, encryption, device enrollment, and every other control should already be sitting there, ready before anyone asks. Each one needs that same upgrade, from a general claim to a specific figure a reviewer can act on:

Control	Weak Answer	Strong Answer
MFA	"MFA is enabled."	"Enforced on 100% of accounts, zero exceptions."
Encryption	"We encrypt data."	"Full-disk encryption confirmed on every endpoint by this week's scan."
Device enrollment	"Devices are managed."	"42 out of 42 devices enrolled and tracked against a real headcount."
EDR coverage	"EDR is deployed."	"100% of in-scope devices have an agent installed and checked in within the last 24 hours."

Questions that don't fit your architecture will still show up. A cloud-native company might still get network security questions written for a datacenter era. Real numbers let you explain how you operate instead of getting stuck in a confusing back-and-forth.

Two things outside the technical controls still need a firm answer ready. The first is your breach notification window, which needs settling in advance since enterprise contracts often push for tight timelines. The second is a current subprocessors list, naming every third party that touches customer data. Keep it as a living document, not something you build the week a deal needs it.

This preparation also helps with every downstream vendor risk assessment, and you can get there even without security staff if you keep the underlying controls enforced automatically.

Keep the Answers True Between Reviews

The controls that mattered at signing can quietly slip by renewal. An employee who left in month three might still have access in month ten, if nobody automated the revocation. A subprocessor added mid-year might never make it onto the list a customer already has on file. None of it surfaces until a renewal reviewer checks or a customer resends the questionnaire, and by then the disconnect between what you claimed at signing and what's running now draws the follow-up question.

Keeping every control enforced continuously, rather than checked once a year, prevents that disconnect from opening in the first place. Zip doesn't treat the initial rollout as the finish line. It keeps re-checking the same baseline every day for as long as you're a customer, so a policy that held on day one still holds on day three hundred without anyone scheduling a recheck. An auditor can then look at any month in the year and find the same picture, instead of a program that was strong at kickoff and had drifted by the time renewal came around.

Full deployment takes 14 days or less, procurement and configuration included. Talk to Zip to get these controls enforced before your next deal reaches procurement.

Frequently Asked Questions About SaaS Security Questionnaire

Does a SOC 2 Type II report replace a security questionnaire?

No. A SOC 2 Type II report usually shortens the process. Many large enterprises still require their own questionnaire alongside the report. Some buyer-side teams will fill one out themselves from your documentation if you do not. Ask each customer their preferred method early rather than assuming the report closes the conversation.

Which questionnaire framework will an enterprise customer send?

Heavily regulated questionnaires often use SIG or CAIQ, while the Vendor Security Alliance (VSA) VSA questionnaire, last updated in 2019, still appears in some tech-company review processes. If you want a lighter self-assessment to publish proactively, CAIQ-Lite self-assessment covers 138 questions across the same 17 domains.

What breach notification window should we agree to?

Watch the trigger language as much as the number. A clock that starts when you become "aware" of an incident is very different from one that starts at confirmation. Short notification windows matter because a customer's own reporting obligations may depend on yours. Agree only to a window your detection and escalation process can meet.

Do enterprise questionnaires ask about AI now?

Yes. Artificial intelligence (AI) now appears in the latest SIG Workbook update as a named control domain, and the AI-CAIQ extension, released in October 2025, covers it for cloud vendors specifically. Actual enterprise questionnaires can lag behind framework updates. If your product uses large language models (LLMs), disclose data handling and third-party AI services proactively rather than waiting for a buyer to ask.

How much time do companies spend on security reviews?

Security reviews recur as an operating workload. Evidence collection and owner-chasing create the real time cost, especially when answers do not match policies or reports and trigger follow-up questions. A complete evidence packet reduces that back-and-forth by making each control's owner and proof available before the buyer asks.