For most pre-Series A founders, the AICPA Trust Services Criteria (TSC) looks like a foreign language. Auditors talk about "Logical and Physical Access Controls" and "System Operations," while you're just trying to push code and close your first six-figure deal.
The mistake most startups make is trying to implement an "Enterprise-grade" SOC 2 framework on day one. They end up with 100+ controls that slow down engineering and cost a fortune to maintain.
At ProofBase, we've boiled the complexity down to the 17 essential controls—the "ProofBase 17™"—that represent the 80/20 of SOC 2 Type 1 readiness.
If you nail these 17 items, you don't just pass the audit; you build a legitimate security foundation.
Pillar 1: Access & Identity
The "Who" of Security
Access control is the first thing every auditor checks. If you can't prove who has access to your production environment, you've already failed.
1Unique User Identifiers
Every employee must have their own account. No shared "admin" logins. This seems basic, but in a fast-moving startup, "sharing the AWS root login" is a common red flag.
🔍 Auditor's Secret:
They will ask for a list of all users in GitHub and AWS and compare it to your Slack roster. If they see "dev-team-1" as a login, it's an immediate finding.
2The Principle of Least Privilege
Users should only have the access they need to do their jobs. Your marketing lead doesn't need "FullAdmin" access to your production database.
The Fix: Use IAM roles with granular permissions.
3Multi-Factor Authentication (MFA)
MFA must be enforced across every single tool in your stack—especially GitHub, AWS/GCP, and your HRIS.
💡 SEO Tip:
If you're looking for automated SOC 2 readiness, ensuring MFA is "Enforced" (not just "Enabled") is the easiest win.
Pillar 2: Product & Change Safety
The "What" of Security
How do you ensure that a rogue developer (or a hacked account) can't push malicious code directly to your customers?
4Peer Code Reviews
Every Pull Request (PR) must be reviewed by at least one other person before it hits the main branch.
📋 Evidence Needed:
Auditors will pull 10-15 random PRs from the last six months. If any were merged without a second signature, you have a gap.
5Automated Vulnerability Scanning
You need a tool (like Snyk, GitHub Advanced Security, or Dependabot) scanning your dependencies for known vulnerabilities.
The "Lean" Way: You don't need a $20k enterprise scanner. GitHub's built-in tools are often sufficient for a Type 1 audit.
Pillar 3: Monitoring & Defense
The "Where" of Security
Auditors want to see that you are "watching the gates."
6Centralized Logging
Your logs shouldn't just exist; they should be searchable. Whether you use CloudWatch, Datadog, or a simple ELK stack, you need to prove that if a security event happened, you have the trail to investigate it.
7Incident Response Plan (IRP)
You don't need a 50-page manual. You need a 2-page document that says: "If we get hacked, Person A calls Person B, we lock the S3 buckets, and we notify customers via this email template."
🔍 Auditor's Secret:
They don't expect you to be unhackable; they expect you to be prepared.
Pillar 4: Vendor & People Risk
The "Who Else" of Security
Your security is only as strong as the vendors you use and the people you hire.
8Background Checks
For a Type 1 audit, you must show that all employees have undergone a background check.
The "Lean" Way: Use a service like Checkr or Ferretly. It's a $50-per-hire cost that saves you from a major audit headache.
9Security Awareness Training
Everyone on the team must complete a basic security training course once a year.
The Fix: There are plenty of free or low-cost videos online. The key is documenting that everyone watched them.
Pillar 5: Resilience & Recovery
The "What If" of Security
If AWS US-East-1 goes down tomorrow, does your business die?
10Automated Backups
Your production database must be backed up automatically, and those backups must be encrypted.
❓ What Auditors Ask:
"When was the last time you tested a restoration?" Having a backup is 50% of the work; proving it works is the other 50%.
11Business Continuity & Disaster Recovery (BCDR)
Like the Incident Response Plan, this is a document that explains how you stay in business during a catastrophe. For most startups, this is as simple as "We use a multi-region deployment strategy."
The Path to Type 2: Continuous Monitoring
While this checklist is focused on SOC 2 Type 1 readiness, it builds the "muscle memory" needed for SOC 2 Type 2. In a Type 2 audit, the auditor isn't just looking for theexistence of these controls; they are looking for consistency over time.
If you say you do "Quarterly Access Reviews," a Type 2 auditor will want to see the logs from Q1, Q2, Q3, and Q4. This is where compliance automation software becomes valuable—by "snapping" evidence every day so you don't have to.
Why the "ProofBase 17" Works
The reason we focused on 17 items isn't arbitrary. These 17 controls map directly to the AICPA Trust Services Criteria. By focusing on this "Lean" set, a solo founder or a 3-person engineering team can get ready for an audit in days, not months.
When you use a platform that forces you into 100+ controls, you aren't getting 5x more security; you're just getting 5x more paperwork.
Conclusion: Start Simple, Scale Fast
Don't let the "Enterprise Bloat" of compliance software scare you away from the deals you deserve. SOC 2 is a hurdle, but it shouldn't be a wall. Use this checklist to baseline your security, document your evidence in ProofBase, and get back to building.
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