Nobody should have any trust with centralized exchanges. Treat them with extreme caution knowing that your data and assets isn't safe with them. Even these exchanges know this and issued this out in their Terms of Service. Below is a snippet of a section of the Terms of Service from OKX , a centralised exchange.
4.7 By accepting the Terms, you expressly agree to the pooling of your Digital Assets with the Digital Assets of other users. Digital assets of users are not protected by deposit protection or deposit insurance scheme. In the case of an irreconcilable shortfall, you may not receive some or any of your deposited assets or funds.
Custody risk
6.36 OKX may hold Fiat Currencies and Digital Assets with third parties. However, the Digital Assets OKX holds are not “deposits” nor are they intended to be held as any other regulated product or service under Applicable Laws.
6.37 In certain circumstances permitted by the Applicable Laws and Regulations or market practice of the relevant jurisdiction OKX may register or record a User’s Account in the name of the custodian or under OKX’s name. If the Accounts are held in the name of the custodian or OKX’s name, such assets may not be segregated from OKX’s assets and, in the event of a default by the custodian or OKX, may not be as well protected from claims of the creditors of the custodian or OKX’s creditors as would be the case if the User’s client assets had been segregated from the assets of the custodian or OKX’s assets. For Users of OKX Singapore specifically, Users’ assets are held in one or more segregated custodial accounts on trust for the benefit of the Users.
6.38 In the event of the insolvency or any other analogous proceedings of a third party holding a User’s Fiat Currencies and/or Digital Assets, OKX may only have an unsecured claim against the third party on the behalf of a User and a User may be exposed to the risk that the Fiat Currencies, Digital Assets or any other property received by OKX from the third party is insufficient to satisfy the User’s claim and the claims of all other relevant Users.
6.39 If OKX deposits a User’s Fiat Currencies and/or Digital Assets with a third party, such Fiat Currencies and/or Digital Assets may be pooled with those belonging to other Users. In such circumstances, a User’s individual client entitlements may not be separately identifiable by separate certificates, other physical documents of title or equivalent electronic records and, in the event of an irreconcilable shortfall after OKX’s insolvency, any Users whose assets have been pooled may share in that shortfall in proportion to their original assets in the pool. Any entitlements or other benefits arising in respect of pooled assets will be allocated pro rata to each User whose assets are so pooled.
6.40 Fiat Currencies and/or Digital Assets may be held by a third party appointed in good faith by OKX, or by OKX’s nominees or sub-custodians. Such third parties are not under the control of OKX, and OKX accepts no liability for any default of any nature by such third parties and, in the event of any such default, a User may suffer total or partial loss in respect of the User’s Account. The extent to which a User may recover its Fiat Currencies and/or Digital Assets in jurisdictions may be governed by specific legislation or local rules.
https://www.okx.com/help/terms-of-serviceThe summary of it all is that, they will do with your personal information and digital assets as they please and there is nothing that you or anyone can do about it because they have already told you so. And you have inadvertently agreed to it when you registered on their platform.
