Phishing is a type of cyber attack in which attackers use deceptive tactics, such as fake emails or websites, to trick individuals into divulging sensitive information such as passwords, credit card numbers, or personal information. 

Checking for phishing is important for several reasons:

1. Protecting sensitive information: By checking for phishing, individuals can protect themselves from falling victim to attacks that could compromise their sensitive information. This includes financial information, login credentials, and personal details.

2. Avoiding financial losses: Phishing attacks often target financial institutions or online stores, and can lead to significant financial losses for victims. By checking for phishing, individuals can avoid falling for fraudulent transactions and losing money.

3. Preventing malware infections: Phishing attacks may also contain malicious links or attachments that, when clicked, install malware on the victim's computer. By checking for phishing, individuals can avoid inadvertently downloading and installing malware that could damage their devices or steal their data.

4. Maintaining online security: Phishing attacks can compromise not only individual users, but also entire organizations. By checking for phishing, individuals can help maintain the security of their online accounts and protect their organizations from data breaches and other security threats. 

In summary, checking for phishing is crucial for protecting sensitive information, avoiding financial losses, preventing malware infections, and maintaining online security.