Leading decompilation and security analysis service

35007 17213 140 12767 287 576255
111591 427463 4541
New

Latest blog post

23.11.2021

A Six-Year-Old Solc Riddle

In late October, we received a request to work on a project unlike any we've had before.

Start Reading


12.11.2021

Harvest Finance Vulnerability, $200K Bounty

We disclosed a critical vulnerability to Harvest Finance, through Immunefi. The vulnerability concerns a proxy pattern and was discovered via an interesting automated analysis.

Start Reading


28.10.2021

Symbolic Value-Flow Static Analysis of Ethereum Smart Contracts

A technical paper describing our most recent analysis technology, responsible for 7 major vulnerabilities detected in-the-wild.

Start Reading


10.08.2021

Verkle tree gas metering impact

We were commissioned by the Ethereum Foundation to study the impact of a new gas cost model, based on Verkle tree access costs.

Start Reading


27.05.2021

EIP-3074 Impact Study

We were commissioned by the Ethereum Foundation to do a study of the impact of EIP-3074 (AUTH and AUTHCALL) on existing contracts.

Start Reading


30.03.2021

Yield Skimming: Forcing Bad Swaps on Yield Farming

Received bug bounties from Vesper Finance and BT Finance for vulnerability disclosures. Both vulnerabilities follow the same pattern and we study when it can be exploited.

Start Reading


18.03.2021

R-Bounty / Primitive Finance Analysis

We reported a critical vulnerability to Primitive Finance, leading to the generous R bounty and an article on the war room operation.

Start Reading


18.02.2021

Killing a Bad (Arbitrage) Bot ... to Save Its Owner

A vulnerable bot was controlling some $80K. We killed it, saving the funds of its owner(s).

Start Reading


10.02.2021

“Look ma’, no source!” Hacking a DeFi Service with No Source Code Available

Reported critical vulnerability to Dinngo/DeFlast team leading to their rescue of all threatened funds. The vulnerable contract had no public source.

Start Reading


21.01.2021

Ethereum Pawn Stars: “$5.7M in hard assets? Best I can do is $2.3M”

Reported critical vulnerability to DeFi Saver team which would have allowed hackers to steal over $3.5m. Vulnerability was originally flagged by one of our tools.

Start Reading


1