The rule: You may not use ultra-fast execution designed to capture very small price movements within milliseconds, whether by algorithm or by hand.
Example of a breach. 40 EURUSD positions in one session, average hold 3 seconds, average result +0.4 pips, each entered within milliseconds of a tick moving. The pattern only works because of execution speed.
Common question — is every short trade high frequency trading? No. No single factor decides it. The Dealing Team reviews speed, frequency, purpose and the full pattern together. The separate two-minute minimum (§11) applies to every position regardless.
What may be reviewed: execution speed, trade count, repeated duration, EA use, overall pattern.
Possible outcome: profit adjustment, payout rejection, or account breach.