Safeguard
Security Guides•

How can you review a new vendor's security in one week?

A day by day plan for a proportionate vendor security review when a team needs an answer fast: scope, evidence, gaps, decision and a record.

Safeguard Security Team
3 min read

You can review a new vendor in a week by spending day one on scope, days two and three on evidence, day four on gaps, and day five on a recorded decision. The key is proportion: the more sensitive the data and access, the deeper each day goes.

Day 1: Scope and tier

Ask the requesting team three things: what the vendor will do, what data it will receive, and which systems it will connect to. Decide the tier from the answers. If it handles no sensitive data and has no access, a short review is enough and you can stop at day two.

Day 2: Request evidence

Send a short request, not a long questionnaire. For a mid tier vendor the list might be:

  • A current independent audit report or equivalent
  • A summary of the latest penetration test
  • The data processing agreement or security terms
  • A description of subprocessors and data location
  • Their breach notification commitment

Day 3: Check public signals

While waiting, look at what you can see without asking. Check the vendor's security page and trust center, any published advisories, and whether the product shows up in the CISA KEV catalog. Note the vendor's ownership and how long it has operated.

Day 4: Read and score the gaps

Compare what arrived with what the tier requires.

FindingTypical response
Requirement met, evidence currentNote and move on
Met, evidence oldAsk for a refresh or a bridge statement
Not met, low impactAccept with a recorded reason
Not met, high impactAsk for a fix, a contract clause or a compensating control
Vendor will not answerTreat as a gap, and escalate if the tier is high

Day 5: Decide and record

Give one of three answers: approve, approve with conditions, or decline. Write the decision, the conditions, the evidence list with dates, the owner and the next review date. Share it with the requesting team in plain words.

What a one week review cannot do

It cannot substitute for a deep assessment of a critical vendor, such as a payment processor or a platform with production access. If the tier is high, use the week to decide how deep to go, and plan the longer work. Also keep the integration scope narrow in the meantime.

Tips that save time

  1. Keep a standard evidence request per tier so you never start from scratch.
  2. Reuse prior answers with a review date. See building an answer library.
  3. Agree a service level with the business, so they know the week is a promise.
  4. Give a fast answer to low risk requests. Slow reviews push people toward unapproved tools.

Quick check

Is one week enough for every vendor?

No. It suits low and mid tier vendors. For critical vendors, treat the week as the first phase and schedule a deeper review.

What if the vendor needs three weeks to send evidence?

Say so in the decision. You can approve a limited trial with conditions, or hold the rollout until the evidence arrives.

Safeguard's compliance and evidence automation can keep your side of this record organized, and a free scan is at gold.safeguard.sh/scan.

Last reviewed: 19 October 2026.

Never miss an update

Weekly insights on software supply chain security, delivered to your inbox.

Self-healing security runs on Safeguard.

Your first fix PR is minutes away.

No sales call required, even your agent can complete the purchase over MCP.