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周末阅读《币安人生》，翻到了 180-182页关于币安被盗 7000枚比特币(2019年5月8日)的经历，颇有共呜。 好巧不巧，在我加入 Trust Wallet 前一个月的圣诞节，插件钱包因为人为小过失，让骇客有机可乘。 @cz_binance 在情况还未被完全诊断清楚之前，率先发推转达Trust Wallet愿意赔偿。 调查后来发现：骇客通过恶意程序渗透了几名员工的电脑，在代码中植入了恶意指令。虽然管理助记词和私钥的核心安全组件并未被攻破，但插件钱包v2.68确实被植入了恶意代码，情况和2019年币安那次类似。在漏洞修复前的短短数小时内打开过插件钱包的用户受到了牵连。 时至今天，@TrustWallet 已加固安全揩施、每天活跃用户量不降反升，对受影响用户赔付进度也已完成95%。而对于已错过申请赔付最后限期的长尾用户，CZ 认为只要对方带著合理凭证，Trust Wallet 该继续受理，「做正确的事」。 Funds are SAFU，从不是一句口号，而是用行动写下的承诺。 Weekend reading Freedom of Money, I reached pages 180-182 about Binance’s May 8, 2019 hack where 7,000 BTC were stolen. It resonated with me. Coincidentally, one month before I joined Trust Wallet, the extension wallet was compromised during Christmas. CZ immediately tweeted that Trust Wallet would reimburse users, even before the issue was fully diagnosed. The investigation showed it was similar to 2019: hackers used malware to infect employee computers and injected malicious code into v2.68 (deprecated). The core seed phrase security was never breached — only users who opened the extension wallet in the few hours before the fix were affected. Today, Trust Wallet has strengthened security, daily active users are up, and 95% of affected users have been compensated. For the remaining vicitms who missed the deadline, CZ believes Trust Wallet should still accept claims with valid proof. Funds are SAFU — not just a slogan, but a promise backed by action.

Your brain has a circuit that doesn't know you live in a city. Its only job is to monitor whether birds are still singing. Right now, in this room, it is on. The circuit predates primates. Mammals have been using ambient soundscape continuity as a predator-detection system for roughly 200 million years. Birds stop singing when something larger moves through their territory. For most of mammalian history, a forest full of song meant no large predator was nearby, and the cessation of sound was the warning. Your nervous system never updated this software. The Max Planck Institute tested the inverse in 2022 with 295 participants. Six minutes of birdsong dropped anxiety with a medium effect size. Six minutes of traffic noise raised depression with the same. The effect worked on subjects who lived in dense urban environments and had no regular contact with nature. The brain still ran the check. Birdsong sits in the 1,000 to 8,000 Hz range. Your brainstem reads continuous patterns in that band as a signal that nothing dangerous is currently moving through the environment. EEG data shows birdsong at 45 to 50 decibels boosts alpha wave activity by 14.1% relative to silence. Alpha is the brainwave signature of relaxed alertness. Push the same birdsong above 60 decibels and the response flips. Stress markers rise 29%. The circuit only trusts the signal at the volume of quiet conversation, which is exactly the volume birds sing at from a typical distance. Three things happen simultaneously when the brain registers ambient safety. The amygdala downregulates. The parasympathetic nervous system takes over from the sympathetic. Heart rate variability rises, cortisol drops. The posterior cingulate cortex, which sits at the center of the rumination circuit, quiets down. King's College London tracked this through a smartphone study with over 1,200 participants and found the mood lift lasted hours after the sound stopped. People diagnosed with depression got the same response as healthy controls. Most of what gets labeled mental fatigue is hypervigilance running in the background. Birdsong tells the circuit it can stand down, and the brain reallocates the freed compute everywhere else. A quiet park feels different from a quiet office because the parks have sentinels.