Unfortunately Bungie does not restore deleted characters or items, so they are gone. [quote]Whether due to accidental deletion or unauthorized account access, Bungie does not recover manually deleted characters or items, and does not replace in-game items that are lost or dismantled. Bungie does not provide the following services: * Restoration of deleted characters * Recovery of dismantled, scrapped, deleted, or otherwise discarded items * Recovery of mistakenly Infused items * Recovery of items lost due a Character's Postmaster being full * Recovery of items lost due to Player Inventories being full * Restoration of access to items or content gained through game sharing * Refunding in-game currencies on accidental purchases * Refunding Silver or transferring Silver between platform accounts, Destiny releases, or inactive accounts in any capacity * Transferring items or characters between platform accounts or inactive accounts in any capacity [url]https://www.bungie.net/en/Help/Article/12211[/url][/quote] The only way someone would have been able to add to your cross save would be if they could authenticate one of the other accounts you have on cross save. It is highly recommended that you change your passwords on all accounts and enable 2FA if you've not already done so.