Definition
Copy trading (restriction)
Mirroring trades between accounts or traders — usually allowed between YOUR OWN accounts, banned across different people.
Copying your own trades across your own accounts at the same firm is commonly permitted (within max allocation). Copying another person's trades, signal services, or account-management arrangements are typically prohibited and void payouts.
Firms detect it statistically: identical entries across unrelated accounts get flagged, and KYC ties accounts to people.
Related terms
General industry definitions — individual firms define terms differently in their own ToS; the decoded rulebook for each firm is the source of truth. Educational, not financial advice.