Security Audits

TokenBridge Audit by Quantstamp (covers xDai bridge functionality)
Completed: January 8, 2020
Conclusion: All high risk issues resolved and low risk issues addressed. More information available in this post.
Contracts: Revised in version 3.3.0 to address audit. https://github.com/poanetwork/tokenbridge-contracts/releases/tag/3.3.0​
​Quantstamp Security Audit PDF​
DPOS (STAKE) Token by Quantstamp
Completed: September 5, 2019
Conclusion: All risks resolved. 
Contracts: Version 1.0.1 addressed items in audit.
https://github.com/xdaichain/stake-token/releases/tag/v1.0.1​
When audited, the working name for the staking token was DPOS. This has since changed to STAKE. Additional minor changes have been made since the previous audit. We have conducted internal audits on these changes and an additional outside audit is in process.
​Quantstamp Report Repository​
​Security Audit PDF​
STAKE (DPOS) Legal Opinion: The legal opinion was collected under the DPOS working title. The token is now renamed STAKE, but all other terms and conditions are the same.  A new report will be issued shortly.
$DPOS Legal Opinion
❗ DPOS was the working token title when this legal opinion was completed. The token is now called STAKE.  All other terms and conditions of the report remain the same. It will be updated with the current name in the near future.   Legal opinion and FAQs on the feasibility of DPOS provided by Ganado Advocates using the DPOS whitepaper shared on April 23, 2019 and the Laws of Malta.  Legal Opinion - DPOS.pdf (615.5 KB)  A summary of the findings of the legal opinion is outlined below. ...
forum.poa.network
POSDAO Initial Security Audit by PepperSec
Completed: August 2019
Conclusion: All issues fixed or addressed. Due to scalability concerns, teams created a new methodology to accumulate and later “pull” their stakes and rewards instead of the “push” strategy as implemented in the audited version of the contracts.
Contracts: Version 0.1.0 addresses issues present in audit. https://github.com/poanetwork/posdao-contracts/releases/tag/v0.1.0​
​POSDAO v1 Consensus Contracts audit​
Last updated 2 weeks ago