The problem here is that digital items are fundamentally different from physical ones. Real-world items like physical credentials (even cheap wristbands) are at least somewhat difficult to copy. A digital credential, on the other hand, can be duplicated effortlessly. Imagine a hacker breaks into your computer and steals a single credential: they can now make an unlimited number of copies and use them to power a basically infinite army of bot accounts, or sell them to underage minors, all of whom will appear to have valid credentials.
辩证分析机遇挑战：大国关系牵动国际形势，国际形势演变深刻影响国内发展，我国发展处于战略机遇和风险挑战并存、不确定难预料因素增多的时期。
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