STEM与日常科技·英语30篇（3）

23 / 30

已读 0 / 30 课

勒索软件攻击与备份的关键作用

Ransomware encrypts files on devices and demands payment for the decryption key.
Attackers often target hospitals, schools, and city governments because they urgently need data access.
Backups stored offline or in immutable cloud storage cannot be encrypted by ransomware.
The 3-2-1 backup rule recommends three copies, on two media types, with one offsite.
Without recent backups, victims face data loss or costly, unreliable decryption attempts.
Some ransomware now scans for backup files first and deletes them before encryption.
Automated, versioned backups let users restore clean files from before infection occurred.
IT teams test restores regularly to ensure backups actually work when needed most.
Personal users should enable automatic cloud sync with version history for photos and documents.
Backups don’t stop attacks — but they remove the attacker’s main leverage: fear of permanent loss.

听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。

Ransomware encrypts files on devices and demands payment for the decryption key. 勒索软件会加密设备上的文件，并索要解密密钥的赎金。
Without recent backups, victims face data loss or costly, unreliable decryption attempts. 若无近期备份，受害者将面临数据丢失，或被迫进行昂贵且不可靠的解密尝试。
Automated, versioned backups let users restore clean files from before infection occurred. 自动化的、带版本控制的备份，可让用户恢复感染前的干净文件。

这篇中文题目最接近哪一句？勒索软件攻击与备份的关键作用一次学校运动会的通知一份超市购物清单

课文第一句的意思更接近？勒索软件会加密设备上的文件，并索要解密密钥的赎金。今天学校放假了。请把窗户打开。

这一课主要在讲什么？（看英文标题） Ransomware Attacks and the Critical Role of Backups How to cook noodles A maths worksheet

Ransomware encrypts files on devices and demands payment for the decryption key.

Ransomware encrypts files on devices and demands payment for the decryption key.

第一版：录下来、回听、再听标准音。系统打分以后再加。

用今天的表达，自己说一句。

例子：Ransomware encrypts files on devices and demands payment for the decryption key.