Why accepting crypto payments over €1,000 on Bitstamp can reportedly freeze your assets starting tomorrow

Bitstamp's new deposit rule will automatically reject crypto deposits exceeding €1,000 from third-party self-custody wallets starting Aug. 18.The notice targets wallets owned by someone other than the Bitstamp account holder. It says deposits from other exchanges will not be affected, and it does not describe a blanket block on customers moving assets from their own self-custody wallets.One customer reproduced the Bitstamp-branded notice, while a commenter on r/BitstampOfficial said they also received an email about the change. Bitstamp has not publicly authenticated the notice, and the user reports don't identify the affected legal entities, jurisdictions or account types, nor an exact launch time.Bitstamp's official API explains how the exchange classifies a Bitstamp deposit by origin. The originator_thirdparty field is false when the sending address is in the customer's name, whether the wallet is hosted by a provider or controlled directly by the customer. A third-party hosted-wallet originator requires a VASP identifier.The same API provides several ways to verify control of an external address, including an ownership-status check, Satoshi tests and xpub registration. Those me...