What attack technique is often leveraged by advanced persistent threat groups but not commonly available to other attackers, such as script kiddies and hacktivists?Group of answer choicesZero-day exploitSocial engineeringTrojan horseSQL injection

The attack technique often leveraged by advanced persistent threat groups but not commonly available to other attackers, such as script kiddies and hacktivists, is the Zero-day exploit.

Here's why:

1. Zero-day exploits are attacks that take advantage of a security vulnerability on the same day that the vulnerability becomes generally known. There are zero days between the time the vulnerability is discovered and the first attack.

2. These exploits are often used by advanced persistent threat (APT) groups because they require a high level of expertise to discover the vulnerability and to develop an exploit.

3. On the other hand, techniques like social engineering, Trojan horses, and SQL injections are more commonly used by less sophisticated attackers. These techniques are easier to execute and do not require the same level of technical expertise.

4. Social engineering, for example, relies on manipulating individuals into revealing confidential information. Trojan horses are malicious programs that disguise themselves as legitimate software. SQL injections involve inserting malicious SQL code into a database query.

5. Therefore, while all these techniques can be used in cyber attacks, zero-day exploits are the ones that are not commonly available to other attackers and are often leveraged by advanced persistent threat groups.