漏洞 Vulnerability Apple修复了多个高危漏洞 https://support.apple.com/zh-cn/HT212317 Windows RPC协议中的权限提升漏洞 https://labs.sentinelone.com/relaying-potatoes-dce-rpc-ntlm-relay-eop/ 安全事件 Security Incident 华盛顿警方遭勒索病毒攻击，警方线人信息存在泄露风险 https://www.bleepingcomputer.com/news/security/dc-police-confirms-cyberattack-after-ransomware-gang-leaks-data/ Alert (AA21-116A) Russian Foreign Intelligence Service (SVR) Cyber Operations: Trends and Best Practices for Network Defenders https://us-cert.cisa.gov/ncas/alerts/aa21-116a Grupos de operaciones cibernéticas y APT de EE.UU, Rusia, China y Corea del Norte https://blog.segu-info.com.ar/2021/04/grupos-de-operaciones-ciberneticas-y.html 黑客曝光2.5亿美国户口记录 https://www.hackread.com/hacker-dumps-household-records-of-americans/ Reverb泄露音乐家个人信息 https://www.bleepingcomputer.com/news/security/reverb-discloses-data-breach-exposing-musicians-personal-info/