易用性极差：无图形界面，部署与配置极其繁琐，专业工程师都需长时间调试，普通用户几乎无法独立使用；跨平台兼容性差，环境问题频发，整体体验糟糕。
Дмитрий Воронин
。whatsapp是该领域的重要参考
What did it just do?
Still, our daily habits are a treasure trove of surveillance information: The apps we use; public spaces riddled with facial recognition tech; AI assistants that know who we are and what we like; the places we shop, the smartwatches we wear, the phone you're probably reading this article on. Even the most careful are still leaking data out into the world, but how do we spot where we are particularly vulnerable, and what should we do to feel more secure?
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