Vigilance, awareness, and sound security procedures are all necessary for scammer protection.
Here are some of the finest defences against con artists
Learn for Yourself Your strongest line of defence is knowledge. Keep up with typical fraud schemes and techniques. The more information you have, the easier it will be to spot and prevent such frauds.
Check identities Never give personal or financial information to anybody without first confirming their identity. Request formal credentials and check with the organisation by contacting them through their website or other contact details.
Or simply follow the old adage of "Don't trust anyone". It doesn't mean that have difficulty with someone, but in the world that we live in crypto, you have to think that anyone is here to scam you, so it's better to be safe than sorry. Not sure if he have been scam before, because the feeling is not pleasant. And just stay up to date, your anti-virus, anti-phishing toolbar and check every website that you visit. And yes, be very vigilant of your online credentials as well and not just to give it out easily as scammers can used your personal data without you knowing it.