cyber attacks

cyber attacks

1. A Trojan horse

   • A Trojan horse, or Trojan, is a type of malicious code or software that looks legitimate but can take control of your computer. A Trojan is designed to damage, disrupt, steal, or in general inflict some other harmful action on your data or network. ... Once installed, a Trojan can perform the action it was designed for

2. Brute-force Attack

   • when all possible password combinations are systematically tried, with the hope of getting it right

3. Denial-of-Service Attack (DoS)

   • when a network resource becomes deliberately overloaded (‘flooded’) with unnecessary requests, preventing it from responding normally.

4. Distributed-Denial-of-Service Attack (DDoS)

   • when the requests come from many sources so you cannot just block a single IP address

5. Worms

   • spread like viruses but do not require human intervention. They attach themselves to network tools to spread automatically around a network very quickly.

6. SQL injection

   • SQL injection is a code injection technique, used to attack data-driven applications, in which malicious SQL statements are inserted into an entry field for execution (e.g. to dump the database contents to the attacker).[1] SQL injection must exploit a security vulnerability in an application's software, for example, when user input is either incorrectly filtered for string literal escape characters embedded in SQL statements or user input is not strongly typed and unexpectedly executed. SQL injection is mostly known as an attack vector for websites but can be used to attack any type of SQL database. SQL injection attacks allow attackers to spoof identity, tamper with existing data, cause repudiation issues such as voiding transactions or changing balances, allow the complete disclosure of all data on the system, destroy the data or make it otherwise unavailable, and become administrators of the database server. In a 2012 study, it was observed that the average web application receiv