(42)Where the business plan of an operator of a DLT market infrastructure involves the safekeeping of clients’ funds, such as cash or cash equivalents, or of DLT financial instruments, or of the means of access to such DLT financial instruments, including in the form of cryptographic keys, the DLT market infrastructure should have adequate arrangements in place to safeguard those assets. Operators of DLT market infrastructures should not use clients’ assets on those operators’ own account, other than with the prior express written consent of their clients. DLT market infrastructures should segregate clients’ funds and DLT financial instruments, and the means of access to such assets, from their own assets or from other clients’ assets. The overall IT and cyber arrangements of DLT market infrastructures should ensure that clients’ assets are protected against fraud, cyber-attacks and other serious operational malfunctions.