Why are newly registered domains often blocked by cybersecurity measures?

Newly registered domains are often blocked by cybersecurity measures primarily because they are frequently associated with malicious activities. Many cybercriminals use newly registered domains as a way to conduct phishing attacks, distribute malware, or commit fraud. These domains can evade detection initially since they haven't accumulated a history or reputation that indicates they are harmful.

Organizations implementing cybersecurity measures prioritize the protection of their networks and data, and blocking new domains helps mitigate the risk of being targeted by cyber threats. The history of many malicious campaigns shows that attackers tend to use newly registered domains to avoid ties to established, reputable websites, thereby increasing the effectiveness of their attacks.

The other options provide context but do not capture the primary reason for blocking new domains. While it's true that new domains may lack user traffic, this factor alone does not justify their blanket blocking. Additionally, the notion that they are less secure or always temporary is more about perception rather than the actual reason behind cybersecurity practices. The reality of their association with malicious activities is the most critical factor in cybersecurity decision-making.