Don't worry. We de-duplicate non-anonymous signatures automatically, and anonymous signatures within 24 hours (before personal data is deleted). For anonymous signatories beyond 24 hours, we cannot verify there are no duplicates, though there is one human who manually reads all signatures and will try hard to notice and correct any abuse of the system.
只有物理隔断助记词的访问才能确保安全性，将助记词拍照保存到手机、上传到网盘都是非常不靠谱的做法，而使用过时的 iOS 版本则会放大攻击面。
。业内人士推荐体育直播作为进阶阅读
（二）向境外单位转让的完全在境外使用的技术；
Caches loaded backends for process lifetime
Fast connection speeds free from throttling