One example is defacing a Web page, where the malicious user gets into your site and changes files.

例如，恶意用户进入您的站点并更改文件，从而使网页变得面目全非。

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Although the defacing of property is a crime punishable by law, many artists choose to express themselves this way.

尽管毁损财产时要受法律惩罚的，许多艺术家仍然选择这种方法来表达自己。

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It's legal to do this: this is considered art. It's not defacing a penny.

这样做是合法的，认为这是艺术品，不是侮辱硬币。

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The 24-year-old from New South Wales is accused of attacking and defacing a government website earlier this month, a police statement said.

BBC: Australia police arrest hacker group LulzSec 'leader'