Something can be both fraudulent and an antitrust issue. In fact there is probably a specific type of fraud which is just this (at least in the UK), which is "F

Something can be both fraudulent and an antitrust issue. In fact there is probably a specific type of fraud which is just this (at least in the UK), which is "Fraud by abuse of position" The UK legal definition of this would be met if a person/company: 1. occupies a position in which he was expected to safeguard, or not to act against, the financial interests of another person (e.g. operates an auction to tender their online marketing spend?) 2. abused that position (e.g. by putting in fake bids, which only they could do because of their position?) 3. dishonestly (e.g. intentionally failed to disclose or was otherwise intentionally dishonest) 4. intending by that abuse to make a gain/cause a loss (e.g. they intended to raise profits) The abuse may consist of an omission rather than an act (e.g. number 3 can be a failure to disclose).