“网络攻击”的英语表达是 cyberattack(也可写作 cyber-attack 或 cyber attack,不过 cyberattack 是更为常见和简洁的写法 )。
例句:
The company suffered a severe cyberattack that disrupted its online services.(该公司遭受了一次严重的网络攻击,导致其在线服务中断。 )
Governments around the world are working together to combat cyberattacks.(世界各国政府正携手合作,共同应对网络攻击。 )