Practice
10+ years in product security
The same practice shapes scope, tests the product, and defends the report in buyer and audit reviews.
Third-party product security testing for SaaS, APIs, cloud, and Kubernetes
If your team calls this VAPT, pentesting, a SaaS security assessment, or an independent security review, this is the place to start. We work within a defined scope, coordinate testing windows, and deliver clear findings with remediation guidance.
Clear scope. Fixed price. Predictable delivery.
Track record
700+ security engagements
Manual application, API, cloud, and AI assessments delivered with evidence, walkthroughs, and retest support.
Reach
150+ organizations secured
Used by SaaS, fintech, healthcare, and infrastructure teams that need a third-party review buyers can inspect.
Selected by product teams for scoped security testing
How we test: follow the attacker's path, then prove the fix
We model how real attackers move through a product - discovering assets, chaining weaknesses, and escalating access. That behavior shapes our testing sequence, so every finding maps to a realistic path and a concrete remediation step.
You get the evidence, the exact sequence, and a clear path to validation once fixes are in place.
Attacker view
Map exposed assets, enumerate APIs/domains, fingerprint frameworks, and probe defaults.
Evidence: Target inventory and risk notes captured in the engagement brief.
Appsecco view
Threat-model product + environment. Align scope, assets, and abuse paths with your team.
Attacker view
Abuse permissive settings (CORS, storage ACLs, broad IAM) to gain a foothold.
Appsecco view
Reproduce misconfig impact with sanitized PoCs/logs to demonstrate material risk.
Remediation focus
Tighten policies; enforce least privilege; add config checks to CI.
Attacker view
Use IDOR/BOLA, weak validation, or undocumented endpoints to move laterally.
Appsecco view
Demonstrate cross-tenant or privilege boundary breaks with minimal, reproducible requests.
Remediation focus
Authorization guards, object ownership checks, strict schema/validation.
Attacker view
Convert partial access into higher privileges via token scope confusion or role misbinding.
Appsecco view
Show exact sequence and tokens/claims enabling escalation.
Remediation focus
Constrain scopes; validate roles server-side; rotate secrets after policy updates.
Attacker view
Reach sensitive data paths or control planes that affect customers or revenue.
Evidence: Screenshots, traces, sanitized PoCs included in the report.
Appsecco view
Document impact, provide fixes, retest, and issue attestation.
Why teams trust the practice
Inspect the specialist practice before you commit
Before teams commit, they usually check three things: who shaped the methodology, what public work exists, and whether the reporting holds up in real internal reviews.
AM
Practice lead
Akash Mahajan
Founder & CEO
Akash leads Appsecco's product security testing practice and the public research behind its methods, labs, and reporting standards.
- 10+ years in product security and 700+ security engagements
- Conference speaker at BlackHat, OWASP, and regional security events
- Author of open-source security training, MCP testing resources, and practitioner checklists
Public research and training work
The public body of work spans cloud attack training, MCP labs, and protocol-specific checklists. It shows how the team thinks before a statement of work ever gets signed.
AWS & Azure security training
949+ GitHub starsHands-on cloud attack-path training material that reflects the same operator mindset used in client cloud reviews.
Vulnerable MCP servers lab
157+ GitHub starsAn intentionally vulnerable MCP training lab that makes tool abuse, prompt injection, and boundary failures concrete.
MCP pentesting checklist
23+ GitHub starsA public checklist used by security teams to reason about tool safety, auth, transport, and data leakage in MCP systems.
Proof buyers can inspect now
Review the report format, case studies, and deliverable shape before you start a scoped engagement.
Product security case studies
Fintech, SaaS, E-commerceSee how scoped testing, remediation evidence, and calm reporting showed up in real client engagements.
Sample report
Engineering-ready artifactReview the evidence format, reproduction steps, and remediation detail before commissioning an assessment.
Reports & deliverables
Review packageInspect what leadership, engineering, customers, and auditors actually receive at the end of an engagement.
What clients say about working with us
Appsecco has delivered great results in the security assessments we’ve engaged them for. What stands out is their effort to deeply understand the application’s design and intended purpose, which helps them identify the right risks and provide meaningful, context-aware findings.
Shruthi R Patil
Manager, Product Security, Infoblox
What we particularly appreciated was the depth of the assessment and the practical context provided around the findings. It gave our engineering and security teams clear areas to strengthen and helped us build greater confidence in the security of our AI features before taking them to customers.
Harshit Agarwal
CEO & Co-Founder, Appknox
Reference-ready next step
Need the right reference for internal review?
Start with the product area that matters and we will send the most relevant report sample, case study, or public research reference.
Share the environment you are reviewing and we will point you to the most relevant case study, report example, or public research trail.
Request scoped reviewTalk through your scope
No commitment required. We will outline a scoped next step and confirm whether a fixed-price assessment makes sense.
How the engagement works
A fixed-scope, fixed-price engagement with a short, predictable sequence. We confirm targets, testing windows, and reporting format before any testing begins.
1
Scope and access alignment
We agree on in-scope assets, environments, and rules of engagement. You see exactly what will and will not be tested.
2
Scheduled testing window
Testing happens in the agreed window with coordination points to avoid disruption and keep teams informed.
3
Evidence, fixes, and validation
Findings include clear evidence and remediation steps. We map each fix to the same path used to validate it.
4
Close-out and handoff
We review results, answer questions, and deliver a report that is ready for internal and compliance reviews.
Fixed scope and fixed price
No surprise add-ons or upsells
Testing windows coordinated in advance
Clear stop/go controls
What you get across each testing area
Each third-party pentest or VAPT engagement produces clear evidence, prioritized fixes, and review-ready summaries. The coverage below shows where we test; the deliverables stay consistent across every area.
Apps & APIs
SaaS VAPT, web application penetration testing, API pentesting, and business logic testing for product teams.
- • Evidence of the request and response chain
- • Fix guidance scoped to the affected code paths
- • Validation steps to confirm closure
Cloud, K8s & IAM
We review cloud and cluster configurations for real exposure paths and explain how to close them without disrupting operations.
- • Configuration evidence with impact context
- • Remediation steps mapped to controls
- • Notes for platform and infrastructure review
AI & MCP (Add-on)
We test AI integrations and MCP workflows and describe how to reduce misuse without blocking product goals.
- • Prompt and tool flow evidence
- • Guardrail and access control guidance
- • Validation steps for safe iteration
Reports & Deliverables
VAPT reports, pentest attestations, and evidence packages for engineering, security, customers, and auditors.
- • Executive summary and risk rationale
- • Technical findings with reproducible steps
- • Artifacts ready for audit and internal review
Every engagement includes
• Executive summary for leadership and stakeholders
• Findings with evidence and clear reproduction steps
• Remediation guidance with priority and effort
• Validation checklist for fixes
• Scope statement and testing window details
• Review-ready VAPT report artifacts for audit, procurement, and customer security reviews
Designed to make internal reviews straightforward without adding extra work.
Talk through scope and constraints. No commitment required.
Share what you want tested and any timelines you are working within. We will outline a careful, fixed-scope approach and answer questions before you decide anything.
No sales pressure
Fixed scope before testing begins
You control timing and access