If the price is too good to be true, it probably is. For example, £20 for a £200 retail-priced piece of software. As a general rule, if there is more than a 20% discount on the Recommended Retail Price (RRP) without rebates, then there is a significant risk that the seller is selling illegal software.
Check the seller’s reputation. Don’t be fooled by the term “Power Seller” or a good rating. Check their user comments-do they have any neutral/negative feedback from buyers claiming fraud by the seller. We also recommend checking the seller’s other auctions. Has this seller placed 10, 20 or more auctions for the exact same piece of software, all at an unbelievable price? This is almost always an indicator of pirated software.
Check the seller’s history. Has this seller just recently appeared and started selling massive amounts of the same piece or set of software products? All of this help you realise if the software is legit or not.