Your Best Ally
in Crypto Security Since 2017

250,000+

Lines of code audited

400+

Security Audits Delivered

2,600+

Issues Found

Don’t rely on just a stamp. True security comes from a thorough audit, followed by a validating report. Remember, over 50% of hacked protocols were confident, yet unaudited.

Tell us about your project

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Benefits

Tailored to you

Top service appreciated by clients

Reliable

Deadlines prioritised and met

Cost-effective

90% time spent on code security

How Auditing Process Works

1

Next-Day Proposals

Thanks to our expertise and tools, we typically provide proposals within one business day.
2

Deep Dive Review

Our team dives deep into your product's details, examining the code both manually and using proprietary automated techniques to ensure nothing is overlooked.
3

Private Report

Once our review is complete, we share our findings exclusively with your team, ensuring confidentiality.
4

Code Updates

Your team takes the lead at this stage, implementing the necessary fixes based on our private report.
5

Review & Verification

We carry out a second review, ensuring that all vulnerabilities have been effectively addressed.
6

Public Report Release

After receiving confirmation from all involved parties, we publish the report on our GitHub and share it across our social media channels.

How We Can Help

Consulting

Pre-production code and overall architecture recommendations. Get expert guidance right from the start, ensuring a solid security foundation for your project.

Auditing

A combination of manual and automated auditing processes. Benefit from a comprehensive audit approach, ensuring maximum security and reliability.

Retainer

A subscription-based service offering ongoing support. Rely on our continuous oversight and expertise at each phase of the process.

FAQ

You can review examples of our Public Reports on GitHub. Additionally, during the audit process we first provide a private version of the report that is shared exclusively with you.

The cost of an audit is determined by the volume and complexity of the code you present. These factors directly influence the time needed for a comprehensive review.

Code that is well-prepared, thoroughly tested, and adequately commented often results in a more cost-effective audit.

For more details on how we estimate costs, you can check our Estimation Process.

Should we identify a critical vulnerability during the audit, we will promptly notify you and provide actionable recommendations. While we offer guidance, the implementation of any code fixes is generally your team’s responsibility.

While every project has its nuances, audit durations typically range from one week to a month. If you’re on a tight schedule nearing a release date, our priority track allows us to begin work within a week of your inquiry.

Feedback from our clients

Our Contributions
to Blockchain Security

Open-Sourced Detectors

Pessimistic pioneered and keeps maintaining Slitherin, a set of essential vulnerability detectors. Built on the industry-standard framework Slither, it is a must-have for anyone serious about secure blockchain development.

Security Monitoring System

We developed Spotter, a cutting-edge monitoring system that detects potential exploits in their early stages, often before they even reach the blockchain. Stay one step ahead of hackers with Spotter.

Public Keynotes and research

We’re not just about providing services; we’re about advancing the field. We actively share our insights through research articles and public appearances, including keynotes at major events like ETH BarcelonaETH Belgrade, and DeFi Security Summit.

The Pessimistic Team

15 experts, driven by blockchain innovation and security

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