QuadrigaCX Trustee Ernst and Young Says it Did Not Initiate the Transfer of 104 BTC
Ernst and Young Inc. has confirmed that it is aware of the unauthorised transfer of 104 BTC from cold wallets belonging to QuadrigaCX and that it did not initiate the move.
Learning from the Pain:What CEX Can Do to Prove Innocence and Improve the Security of Funds
The trust of users on CEXs has so worn out that withdrawals are made at an unprecedented level. In order to retain users and funds, CEXs released proof of reserve to prove innocence.

