Application Security : What to Verify Before, During, and After | Checklist
The complete checklist for application security : what to verify before, during, and after | clickmasters: what to verify before starting, during development, before launch, and after launch. Every item is specific and binary it is done or it is not.
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Application Security Checklist
The complete checklist for application security: what to verify before starting, during development, before launch, and after launch. Every item is specific and binary it is done or it is not. No ambiguity, no interpretation required.
Pre-Engagement Security Checklist
0/21Engagement scope document signed by client (specific systems, IP ranges, test types)
Written authorisation to conduct security testing obtained
Client security team notified of testing schedule
IDS/IPS alert suppression configured for test source IPs
Emergency contact list documented (who to call if testing causes production issue)
Rules of engagement defined (no destructive testing, no PII exfiltration)
OWASP Top 10 reviewed: A01 Broken Access Control tested
OWASP Top 10 reviewed: A02 Cryptographic Failures tested
OWASP Top 10 reviewed: A03 Injection (SQLi, NoSQLi, XXE) tested
OWASP Top 10 reviewed: A07 Authentication failures tested (brute force, session fixation)
Dependency scan: all production dependencies checked against CVE database
Secret scanning: Git history checked for committed credentials
Network scan: all open ports documented and justified
SSL/TLS configuration verified (TLS 1.2 minimum, 1.3 preferred, no weak ciphers)
Security headers verified (HSTS, CSP, X-Frame-Options, Referrer-Policy)
Every finding has a CVSS 3.1 score
Every finding has a proof-of-concept (where safe to demonstrate)
Every finding has a specific remediation recommendation
Executive summary: business risk context, not just technical details
Findings prioritised by CVSS severity
Re-test scope defined for remediated findings
Post-Remediation Checklist
0/5All critical and high findings remediated and re-tested
Re-test report issued confirming findings are resolved
Remediation evidence available for compliance audit (screenshots, test output)
Findings added to vulnerability management backlog
Next assessment date scheduled (recommended: annual minimum)
Application Security : What To Verify Before, During, And After | ClickMasters Checklist Engineering Baseline
complete all pre-project checklist items before signing a development contract. Items marked are non-negotiable a vendor who will not complete them is a vendor who will produce surprises during delivery.
Industry-standard compliance and best practice implementation.
review the sprint checklist at each sprint review. A story that does not pass all sprint checklist items is not a completed story it should not be counted in the sprint velocity or reported as 'done' to stakeholders.
Industry-standard compliance and best practice implementation.
complete the pre-launch checklist before exposing the product to any external users. The pre-launch items are the ones where failures are most costly a security issue discovered after launch costs 10-100x more to address than one discovered before.
Industry-standard compliance and best practice implementation.
complete the post-launch checklist in the first 30 days. These items are not optional enhancements they are the verification that the launched product is working as intended and that the monitoring infrastructure is in place to catch problems before users report them.
Industry-standard compliance and best practice implementation.
Application Security : What to Verify Before, During, and After | ClickMasters That Completes Every Checklist Item
ClickMasters runs this checklist on every engagement. Fixed-price.
