Advanced persistent threat (APT) usually refers to a group, such as a foreign nation state government, with both the capability and the intent to persistently and effectively target a specific entity. The term is commonly used to refer to cyber threats, in particular that of Internet enabled espionage, but applies equally to other threats such as that of traditional espionage or attack.
aeGis is an OSS alternative to other security apps that interact via SMS.aeGis allows you to lock, locate, wipe, and alarm your phone via configurable SMS passphrases.
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GreenSQL is an Open Source database firewall used to protect databases from SQL injection attacks. GreenSQL works as a proxy and has built in support for MySQL and PostgreSQL. The logic is based on evaluation of SQL commands using a risk scoring matrix as well as blocking known db administrative commands (DROP, CREATE, etc). Commercial version of GreenSQL supporting Microsoft SQL Server is available here.
The Bastille Hardening program "locks down" an operating system, proactively configuring the system for increased security and decreasing its susceptibility to compromise.