漏洞 Vulnerability CVE-2021-26855：Microsoft Exchange 未认证邮件下载漏洞 https://www.exploit-db.com/exploits/49879 CVE-2021-0230: Junos 内存泄漏漏洞 https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11125 安全事件 Security Incident Conti勒索病毒团伙已为爱尔兰卫生服务部门提供免费解密工具，但若不支付赎金其数据仍被售卖 https://www.bleepingcomputer.com/news/security/conti-ransomware-gives-hse-ireland-free-decryptor-still-selling-data/ 澳大利亚和新西兰多个集团受到恶意软件攻击 https://www.zdnet.com/article/domain-group-says-phishing-attack-targeted-site-users/ 新的WastedLocker变体利用Internet Explorer漏洞 https://www.databreachtoday.com/new-wastedlocker-variant-exploits-internet-explorer-flaws-a-16705 研究人员发现DarkSide勒索软件变种 https://www.databreachtoday.com/researchers-uncover-another-darkside-ransomware-variant-a-16704 阿拉斯加卫生部服务受到恶意软件攻击的影响 https://www.databreachtoday.com/alaska-health-department-services-affected-by-malware-attack-a-16708