Peak Security

We hack you,before attackers do.

One missed vulnerability can cost you a quarter of revenue. We’ve done 0 pentests. 5 in 10 had a High or Critical vulnerability.

[ The risk ]

Most expensive breaches start as ordinary product gaps.

Exposed APIs, loose storage, cloud tables, and access rules that moved faster than the checks around them. We look for those first.

Yahoo logo2013
3BYahoo

Every Yahoo account was compromised in the largest breach ever disclosed.

Aadhaar logo2018
1.1BAadhaar

India's national ID database was reachable through insecure endpoints.

LinkedIn logo2021
700MLinkedIn

Scraped profile data for most users surfaced for sale online.

Sina Weibo logo2020
538MSina Weibo

Account details for China's largest social platform were sold off.

Marriott logo2018
500MMarriott

Attackers sat in Starwood's reservation system for four years.

Microsoft logo2020
250MMicrosoft

A misconfigured database exposed years of support logs.

Change Healthcare logo2024
190MChange Healthcare

A payments breach exposed medical and billing data nationwide.

Equifax logo2017
147MEquifax

One unpatched web server exposed the credit data of half the US.

Target logo2013
110MTarget

A vendor login led to card data theft during the holidays.

Capital One logo2019
106MCapital One

A misconfigured cloud firewall exposed credit applications.

Uber logo2016
57MUber

Uber paid hackers to hide a breach instead of disclosing it.

Medibank logo2022
9.7MMedibank

Health records leaked after a ransom demand was refused.

DeepSeek logo2025
1M+DeepSeek

An exposed database leaked chat history and secret keys.

Yahoo logo2013
3BYahoo

Every Yahoo account was compromised in the largest breach ever disclosed.

Aadhaar logo2018
1.1BAadhaar

India's national ID database was reachable through insecure endpoints.

LinkedIn logo2021
700MLinkedIn

Scraped profile data for most users surfaced for sale online.

Sina Weibo logo2020
538MSina Weibo

Account details for China's largest social platform were sold off.

Marriott logo2018
500MMarriott

Attackers sat in Starwood's reservation system for four years.

Microsoft logo2020
250MMicrosoft

A misconfigured database exposed years of support logs.

Change Healthcare logo2024
190MChange Healthcare

A payments breach exposed medical and billing data nationwide.

Equifax logo2017
147MEquifax

One unpatched web server exposed the credit data of half the US.

Target logo2013
110MTarget

A vendor login led to card data theft during the holidays.

Capital One logo2019
106MCapital One

A misconfigured cloud firewall exposed credit applications.

Uber logo2016
57MUber

Uber paid hackers to hide a breach instead of disclosing it.

Medibank logo2022
9.7MMedibank

Health records leaked after a ransom demand was refused.

DeepSeek logo2025
1M+DeepSeek

An exposed database leaked chat history and secret keys.

National Public Data logo2024
2.9BNational Public Data

A data broker leak put Social Security numbers into open circulation.

Alibaba logo2019
1.1BAlibaba

A scraper pulled over a billion records from the Taobao platform.

Ticketmaster logo2024
560MTicketmaster

A cloud breach exposed customer and ticketing data at scale.

Facebook logo2021
533MFacebook

Phone numbers and profile data leaked from an old scraping flaw.

MySpace logo2016
360MMySpace

An old credential dump became one of the largest ever leaked.

Twitter / X logo2023
200MTwitter / X

An API flaw let attackers match emails to accounts at scale.

Adobe logo2013
153MAdobe

Source code and customer records were stolen together.

eBay logo2014
145MeBay

Stolen employee logins opened the whole user database.

AT&T logo2024
109MAT&T

Call and text metadata for nearly every customer leaked.

JPMorgan Chase logo2014
76MJPMorgan Chase

A breach hit three quarters of US households' bank.

Internet Archive logo2024
31MInternet Archive

The library's authentication database was exposed and defaced.

23andMe logo2023
6.9M23andMe

Profile sharing turned credential stuffing into a genetic data leak.

LastPass logo2022
VaultsLastPass

Attackers stole backups of customer password vaults.

National Public Data logo2024
2.9BNational Public Data

A data broker leak put Social Security numbers into open circulation.

Alibaba logo2019
1.1BAlibaba

A scraper pulled over a billion records from the Taobao platform.

Ticketmaster logo2024
560MTicketmaster

A cloud breach exposed customer and ticketing data at scale.

Facebook logo2021
533MFacebook

Phone numbers and profile data leaked from an old scraping flaw.

MySpace logo2016
360MMySpace

An old credential dump became one of the largest ever leaked.

Twitter / X logo2023
200MTwitter / X

An API flaw let attackers match emails to accounts at scale.

Adobe logo2013
153MAdobe

Source code and customer records were stolen together.

eBay logo2014
145MeBay

Stolen employee logins opened the whole user database.

AT&T logo2024
109MAT&T

Call and text metadata for nearly every customer leaked.

JPMorgan Chase logo2014
76MJPMorgan Chase

A breach hit three quarters of US households' bank.

Internet Archive logo2024
31MInternet Archive

The library's authentication database was exposed and defaced.

23andMe logo2023
6.9M23andMe

Profile sharing turned credential stuffing into a genetic data leak.

LastPass logo2022
VaultsLastPass

Attackers stole backups of customer password vaults.

[ How it works ]

A 30-minute call is the whole setup.

No security team required, nothing to install. Here is everything that happens after that call.

01
Scope

A 30-minute call sets boundaries, test accounts, and the disclosure path. No broad access. No surprise production activity.

02
Hunt

AI-assisted agents and human researchers probe the product surface faster than a manual review can cover alone.

03
Validate

Every lead is reproduced by a human. If we cannot prove a real exploit path safely, it does not become a finding.

04
Report

Your team gets a concise report with proof, impact, and a fix path. We stay available while the patch ships and beyond.

[ What Peak does ]

We think like an attacker. We report like an ally.

The work is aggressive. The handoff is calm. Your engineers get the shortest path from confirmed issue to shipped fix.

app.yourco.comCompleted32h ago
api.yourco.comRunning1now
auth-serviceCompleted21d ago
payments-apiCompleted13d ago
01 / Find · Auth & access
We break in the way attackers actually do.

Password resets that leak tokens. Invites that outlive employees. Object IDs you can just increment. We hit the boring product flows everyone ships fast and nobody re-reads — because that's where real breaches start.

Cross-tenant invoice access via ID increment

Any authenticated user can download invoices belonging to other organizations by changing the numeric id. Reproduced on a test account. No customer data touched.

severity
High
location
invoices.ts:47
found
2h ago
02 / Prove · Proof of impact
Screenshots, or it didn't happen.

You get the exact request we sent, what came back, and how far it could have gone — reproduced by hand, bounded to test accounts. If we can't prove it, you never hear about it.

fix.patch — api/invoices.ts
- const inv = await Invoice.findById(id)
+ const inv = await Invoice.findOne({ _id: id, org })
✓ Fix verified — no longer exploitable
retest passed · same day
03 / Fix · Merge-ready fix
The fix is in the report.

Every finding ends with the exact line of code or setting that closes it. Your engineer patches it the same day, and we retest to confirm the issue is gone for good.

[ Trust ]

From the teams we reported to.

Reply from a Vulnerability Management Manager
Reply from a Deputy CISO at a global asset manager
Reply from a Security team at an AI company
Reply from a CTO at an AI startup
Reply from a CISO at a research university
Reply from a Security team at a cybersecurity company
Reply from a Security team at an insurance brokerage
Reply from a Chief Information Security & Compliance Officer
Reply from a Information security team at a digital-health company
Reply from a Security team at a fintech
Reply from a CEO of a global learning platform
Reply from a CISO & Head of Cybersecurity
Reply from a Startup founder & advisor
Reply from a Security leader at an automotive tech company

Vulnerability Management Manager

[ What you get ]

One report. Aggressive on bugs, careful with your business.

Not another scanner dump. Every finding lands as one page: exactly what broke, how to reproduce it, proof it is real, what it costs you, and the line that closes it.

Bounded scope
We hack you, not your customers

Controlled test accounts and minimal safe samples are the default. Production customer data is off limits.

Verified findings
Proof, not panic

A critical finding means we confirmed real impact. Weak scanner output gets downgraded or discarded before you see it.

Responsible disclosure
Quiet by default

Careful first contact, calm communication, and details routed to the right people before anyone else hears about it.

Zero setup
Built for speed

You do not need a security team in place first. We give fast-moving companies a concrete process for finding and fixing issues.

[ FAQ ]

Questions teams ask first.

Is this just a scanner?+

No. Scanners find noise. We reproduce real exploit paths by hand and discard anything we can't prove, so every finding you see is a confirmed, bounded issue.

Will you touch our customer data?+

Never. We work from controlled test accounts and minimal safe samples. Production customer data is strictly off limits.

What do we get?+

A concise report: the affected system in plain English, reproduction steps, proof of real impact, and a fix your engineers can ship the same day.

How fast can we start?+

A 30-minute scoping call is all it takes to begin. You do not need a security team in place first.

Find out what an attacker would.

Book a 30-minute call. We will walk through your product, how we test safely, and what we would go after first.