I don't know how to send spam.

我不知道如何送邮件。

youdao

They can be used to attack other systems, host attack tools, send spam, or just steal data.

犯罪分子可以利用计算机网络攻击他人计算机系统、软件、发送垃圾邮件或是窃取资料。

youdao

This could allow malicious sites to steal private data, send spam, or enlist the computer in a botnet.

这可能允许恶意网站窃取个人资料，发送垃圾邮件，或争取在一个僵尸网络的计算机。

youdao

Botnets can send spam and flood Web sites with countless requests for information, a cyber attack also known as distributed denial of service.

FORBES: Made For Hacking

It aims to tackle those firms that send spam from one network but maintain their actual trading site on a reputable net operator.

BBC: NEWS | Technology | Net firms set sights on spammers

Users who clicked on the links became vulnerable to programs installed on their computers that were designed to steal bank codes, send spam and engage in click fraud.

FORBES: Magazine Article