Issue
There have been known spam transactions on Algorand associated with phishing attempts. These transactions are identified by a transaction note recorded on the blockchain. Fireblocks does not record these incoming spam transactions.
Transaction note
The following note is visible using an Algorand blockchain explorer:
"The transaction you just received a KNOWN phishing scam impersonating USDC. Do NOT connect or give your phrase to that site!"
Resolution
Fireblocks does not send notifications about these transactions. No record of these transactions will be shown in your recent activity panel or transaction history.