How to trade securely in online games

Trade securely  Many gamers have made trading in-game items a good source of income. Some sell items they can not use for their character class; Others, before leaving the game completely, only seek to empty the wealth they…

How to fix DMARC mechanism defects

DMARC, Throughout the history of email, people have come across many technologies that are primarily designed to protect recipients from fake emails (mostly phishing). DKIM [1] and SPF [2] had many defects;  Therefore, the DMARC message verification mechanism [3] was designed to identify…