https://zcoin.io/further-disclosure-on-zerocoin-vulnerability/ https://twitter.com/zcoinofficial https://medium.com/@zcoin https://twitter.com/matthew_d_green https://github.com/zcoinofficial/zcoin/wiki/Parameters-in-set-up-phase-for-Z... One Out Of Many Proofs: How to Leak a Secret and Spend a Coin https://eprint.iacr.org/2014/764.pdf Short Accountable Ring Signatures Based on DDH https://eprint.iacr.org/2015/643/20150630:200838 Next gen privacy protocol removes fixed denominations in minting and spending. http://lelantus.io/ Though ZeroCash Zcash recently had its own big exploit, this news does not apply to that family. Comparing privacy coins... many articles are outdated, and range from biased to wrong, as with all coins... do not attempt to compare them without researching their current state.