Launch Ready cyber security Checklist for mobile app: Ready for handover to a small team in bootstrapped SaaS?.

Launch Ready cyber security Checklist for mobile app: Ready for handover to a small team in bootstrapped SaaS?

For a bootstrapped SaaS mobile app, "ready" does not mean "it runs on my phone". It means a small team can take over without exposing customer data, breaking sign-in, or spending the next month firefighting DNS, email, and release issues.

I would call it ready only if the app has no exposed secrets, production auth works end to end, domain and email are verified, SSL is enforced, monitoring is active, and the team can deploy or roll back without guessing. If any of those are missing, the handover is not ready because the first incident will become a support and trust problem, not just a technical one.

Launch Ready is the service I would use when the product is close but the launch surface is still risky.

Quick Scorecard

| Check | Pass criteria | Why it matters | What breaks if it fails | |---|---|---|---| | Domain ownership | Registrar access is documented and 2FA enabled | Prevents lockout and hijack risk | Site takeover, DNS outage | | SSL everywhere | All app endpoints force HTTPS with valid certs | Protects login and session traffic | Credential theft, browser warnings | | Secrets handling | Zero secrets in code, repo history, or client app bundles | Stops token leakage | API abuse, data exposure | | Auth safety | No critical auth bypasses; session rules tested | Protects customer accounts | Account takeover | | DNS hygiene | Correct A/CNAME/MX/TXT records and redirects | Keeps app and email working | Broken app routing, failed email | | Email authentication | SPF, DKIM, DMARC all pass | Improves deliverability and anti-spoofing | Mail lands in spam or gets spoofed | | Cloudflare protection | WAF/CDN/rate limits enabled where relevant | Reduces attack surface and load spikes | DDoS pain, brute force abuse | | Deployment control | Production deploy is repeatable with rollback path | Avoids one-way broken releases | Downtime after updates | | Monitoring active | Uptime alerts and error tracking are live | Shortens detection time from hours to minutes | Silent outages and support backlog | | Handover docs complete | Small team can operate without founder memory | Reduces dependency on one person | Delayed fixes, tribal knowledge risk |

A good baseline for this kind of handover is zero exposed secrets, SPF/DKIM/DMARC passing on production email domains, and no critical auth bypasses in manual testing. If your mobile app also calls APIs directly from the device, I want p95 API latency under 500 ms for core flows so users do not feel lag during sign-in or checkout.

The Checks I Would Run First

1. Secret exposure scan

• Signal: API keys in source code, `.env` files committed to git history, tokens inside mobile bundles.
• Tool or method: Git history scan with `git log`, secret scanners like Gitleaks or TruffleHog, plus a quick search through build artifacts.
• Fix path: Rotate anything exposed immediately. Move all runtime secrets server-side where possible, strip them from client code, and add pre-commit plus CI secret scanning.

2. Authentication and session review

• Signal: Users can access another account by changing an ID, refresh tokens never expire, password reset links are reusable.
• Tool or method: Manual test cases against sign-in, sign-up, reset password, invite flow, logout behavior, and role changes.
• Fix path: Enforce server-side authorization on every request. Add short-lived tokens where possible, invalidate sessions on password change, and verify reset tokens are single-use.

3. DNS and email trust check

• Signal: App subdomains resolve inconsistently; marketing emails fail authentication; support replies get flagged as spam.
• Tool or method: Inspect DNS records in registrar/Cloudflare dashboard; verify SPF/DKIM/DMARC using mail-tester tools or provider diagnostics.
• Fix path: Standardize records for root domain plus subdomains. Set DMARC policy from monitoring to quarantine or reject after alignment passes consistently.

4. TLS and edge protection review

• Signal: HTTP still works without redirect; mixed content appears; Cloudflare not proxying sensitive traffic; no rate limiting on login.
• Tool or method: Browser dev tools plus `curl -I http://yourdomain.com` and Cloudflare security settings review.
• Fix path: Force HTTPS at the edge. Enable HSTS when safe. Turn on WAF rules for obvious abuse paths like login and password reset.

5. Production deployment sanity check

• Signal: Deployments require manual edits in multiple places; environment variables differ between staging and prod; rollback is unclear.
• Tool or method: Walk through a full deploy from clean state using current docs only.
• Fix path: Create one documented deployment path with named environments. Store config outside source control. Add rollback steps before shipping again.

6. Monitoring and incident visibility

• Signal: The team finds outages through user complaints rather than alerts; no error tracking exists; logs do not show request IDs.
• Tool or method: Trigger a test alert by stopping health checks or forcing a harmless error in staging.
• Fix path: Add uptime monitoring for the public site plus key APIs. Add error tracking with release tags so failures map back to deployments fast.

Red Flags That Need a Senior Engineer

1. The mobile app stores tokens in insecure local storage without a clear threat model. 2. The backend trusts client-supplied user IDs or roles anywhere in billing or admin flows. 3. Secrets have already been committed to git history or shipped inside the app bundle. 4. DNS changes affect both app delivery and transactional email but nobody knows who owns the registrar. 5. There is no rollback plan for production deploys because "we have not needed one yet".

These are not cosmetic issues. They create account takeover risk, support load spikes after launch day bugs, failed email delivery to paying users, and downtime that burns founder attention at exactly the wrong time.

DIY Fixes You Can Do Today

1. Inventory every domain and subdomain

• Write down registrar login details, Cloudflare access if used,

production domain names, staging domains, API subdomains, email sending domains, renewal dates, 2FA status.

2. Rotate obvious secrets

• Change any key that appears in shared docs,

screenshots, old `.env` files, chat logs, repo history, mobile builds.

3. Check email authentication now

• Confirm SPF includes only legitimate senders.
• Confirm DKIM signing is enabled by your provider.
• Start DMARC in monitor mode if you are unsure about alignment.

4. Force HTTPS everywhere

• Redirect HTTP to HTTPS at the edge.
• Remove mixed content links from web views inside the mobile app.
• Make sure cookies marked sensitive use secure flags where relevant.

5. Create a basic incident note

• List who gets alerted,

what counts as an outage, how to disable risky features, how to roll back the last deploy, where logs live.

A simple example of an edge redirect rule helps if your setup still serves HTTP:

server {
  listen 80;
  server_name example.com www.example.com;
  return 301 https://example.com$request_uri;
}

That alone does not make you secure. It just removes one easy failure mode while you fix the rest of the stack properly.

Where Cyprian Takes Over

If your checklist shows any of these failures:

• exposed secrets
• broken DNS
• missing SSL
• weak email authentication
• unclear deployment flow
• no uptime monitoring
• insecure handover docs

then Launch Ready maps directly to those gaps.

Here is how I would handle it in 48 hours:

• Hour 0 to 6: audit domain ownership, DNS records,

current deployment path, secret exposure, Cloudflare setup, email sender configuration.

• Hour 6 to 18: fix DNS routing,

enforce SSL, configure redirects/subdomains, enable caching where safe, turn on DDoS protection/WAF basics.

• Hour 18 to 30: clean up environment variables,

move secrets out of unsafe locations, validate production deployment settings, verify auth-critical paths still work after changes.

• Hour 30 to 40: set up uptime monitoring,

error alerts, log visibility, handover checklist for a small team.

• Hour 40 to 48: run final smoke tests,

confirm SPF/DKIM/DMARC pass, document what changed, transfer operating notes so your team can own it without me.

My goal is not just "deployed"; my goal is "safe enough for a small team to run without founder babysitting."

If you want this handled fast instead of pieced together across five tools and three late nights: https://cal.com/cyprian-aarons/discovery

References

• roadmap.sh: https://roadmap.sh/cyber-security
• roadmap.sh: https://roadmap.sh/api-security-best-practices
• roadmap.sh: https://roadmap.sh/code-review-best-practices
• OWASP Mobile Application Security Verification Standard: https://mas.owasp.org/
• Cloudflare Docs: https://developers.cloudflare.com/

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Take the next step

If this is a problem in your product right now, here is what to do next:

• [Use the free Cyprian tools](/tools) - estimate cost, score app risk, check launch readiness, or pick the right service sprint.

• [Book a discovery call](/contact) - I will tell you honestly whether you need a sprint or if you can DIY the next step.

*Written by Cyprian Tinashe Aarons - senior full-stack and AI engineer helping founders rescue, launch, automate, and scale AI-built products.*