Being careful about any offer is usually the best solution, but there are also some additional ways. If it's too good to be true, it's probably a scam. Common sense helps a lot in these situations. If someone claims to make hundreds of pips per day without a single losing trade with their strategy, it's probably too good to be true.
Even professional traders have losing trades from time to time. Any trader, both experienced and novice, can become a victim of a scam in the Forex market. If the results are not verified by an independent third-party service, you're most likely dealing with a scam.
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