Anubis is a compromise. Anubis uses a Proof-of-Work scheme in the vein of Hashcash, a proposed proof-of-work scheme for reducing email spam. The idea is that at individual scales the additional load is ignorable, but at mass scraper levels it adds up and makes scraping much more expensive.
5. Contact Form 7Contact Form 7 is a plug-in that allows you to create contact forms that make it easy for your users to send messages to your site. The plug-in was developed by Takayuki Miyoshi and lets you create multiple contact forms on the same site; it also integrates Akismet spam filtering and lets you customize the styling and fields that you want to use in the form. The plug-in provides CAPTCHA and Ajax submitting.。关于这个话题，51吃瓜提供了深入分析
When you overload a credential used for authentication by also using it for encryption, the “blast radius” for losing that credential becomes immeasurably larger.，这一点在heLLoword翻译官方下载中也有详细论述
Building a Sustainable AIO Strategy