◇چین از قطاری با قابلیت دستیابی به سرعت ۴۵۰ کیلومتر در ساعت رونمایی کرد. نمونه اولیه قطار سریع السیر CR450 در پکن رونمایی شد. در طول حرکت آزمایشی، قطار به سرعت ۴۵۰ کیلومتر در ساعت رسید، سرعت عملیاتی آن ۴۰۰ کیلومتر در ساعت بود. قطار CR450 پس از بهره‌برداری تجاری، سریع‌ترین قطار در جهان خواهد بود. اکنون حداکثر سرعت قطارها ۳۵۰ کیلومتر در ساعت است.
◇چین از قطاری با قابلیت دستیابی به سرعت ۴۵۰ کیلومتر در ساعت رونمایی کرد. نمونه اولیه قطار سریع السیر CR450 در پکن رونمایی شد. در طول حرکت آزمایشی، قطار به سرعت ۴۵۰ کیلومتر در ساعت رسید، سرعت عملیاتی آن ۴۰۰ کیلومتر در ساعت بود. قطار CR450 پس از بهره‌برداری تجاری، سریع‌ترین قطار در جهان خواهد بود. اکنون حداکثر سرعت قطارها ۳۵۰ کیلومتر در ساعت است.
"We as Ukrainians believe that the truth is on our side, whether it's truth that you're proclaiming about the war and everything else, why would you want to hide it?," he said. Groups are also not fully encrypted, end-to-end. This includes private groups. Private groups cannot be seen by other Telegram users, but Telegram itself can see the groups and all of the communications that you have in them. All of the same risks and warnings about channels can be applied to groups. Telegram boasts 500 million users, who share information individually and in groups in relative security. But Telegram's use as a one-way broadcast channel — which followers can join but not reply to — means content from inauthentic accounts can easily reach large, captive and eager audiences. "There are a lot of things that Telegram could have been doing this whole time. And they know exactly what they are and they've chosen not to do them. That's why I don't trust them," she said. Telegram has gained a reputation as the “secure” communications app in the post-Soviet states, but whenever you make choices about your digital security, it’s important to start by asking yourself, “What exactly am I securing? And who am I securing it from?” These questions should inform your decisions about whether you are using the right tool or platform for your digital security needs. Telegram is certainly not the most secure messaging app on the market right now. Its security model requires users to place a great deal of trust in Telegram’s ability to protect user data. For some users, this may be good enough for now. For others, it may be wiser to move to a different platform for certain kinds of high-risk communications.
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