一场大规模国际网络攻击在5月8日爆发，导致全球多所大学和学校的教务管理系统遭受严重冲击。哈佛大学率先宣布将Canvas学习管理系统紧急下线，随后多所教育机构相继报告系统异常。

攻击范围与影响

英国网络安全中心（NCSC）确认这是一起"国际性网络攻击"，受影响机构遍布多个国家。Canvas作为全球使用最广泛的在线学习管理平台之一，服务于数千所高校和K-12学校。此次攻击导致学生无法访问课程资料、提交作业，教师也无法正常开展线上教学。

哈佛大学的IT部门在发现问题后迅速采取行动，将Canvas系统完全隔离。这一决定影响了数万名学生的正常学习活动。其他高校也在评估自身系统是否受到影响。

事件背景

此次攻击发生的时间点尤为敏感。正值北美多所高校期末考试准备期间，欧洲院校也处于学期关键阶段。网络攻击对教育系统的集中打击，凸显了关键教育基础设施的脆弱性。

目前，尚无任何组织宣称对此负责。各国网络安全机构正在联合调查攻击的来源和手段。初步分析表明，这可能是一起针对教育行业供应链的攻击，通过Canvas平台的通用接口影响了下游所有使用机构。

应对建议

多国教育部门已向学校发布紧急指南，建议启用备用教学方案，包括邮件通知和线下课程安排。网络安全专家提醒学生和教职员工，在系统恢复期间注意防范钓鱼邮件等二次攻击。

Global Cyber Attack Disrupts University Systems Worldwide

A major international cyber attack on May 8 has disrupted educational systems across multiple countries, with Harvard University among the first to take its Canvas learning management system offline.

The UK’s National Cyber Security Centre confirmed the attack as “international” in scope. Canvas, one of the world’s most widely used education platforms serving thousands of universities and K-12 schools, experienced widespread outages. Students lost access to course materials and assignment submission, while teachers were unable to conduct online classes.

Harvard’s IT department moved quickly to isolate the Canvas system, affecting tens of thousands of students. Other universities are assessing whether their systems have been compromised.

The timing is particularly disruptive, coming during final exam preparation period for North American universities and a critical phase for European institutions. No group has claimed responsibility. Security agencies across multiple countries are conducting a joint investigation.

Education departments have issued emergency guidance recommending backup teaching methods including email communications and in-person classes. Security experts warn students and staff to remain vigilant against phishing emails during the recovery period.