Texas law doesn't require landlords to store a security deposit in a particular way. But again, that's at the state level. It's entirely possible that some localities have various rules and regulations.
纽约:The security deposit must be kept by the owner in an interest-bearing account in a New York State bank. The owner must notify the tenant of the name and address of the bank and pay the tenant the full annual interest, less 1% of the security deposit per year for the owner's administrative costs.