Oracle has issued a warning about a security bug that hackers have been exploiting to breach over 100 companies. The tech giant warned that the vulnerability, known as a “zero-day” exploit, is being used by a cybercrime gang as part of a mass-hacking campaign.

Google said it notified more than 100 organizations that had potentially vulnerable servers. The company advised users to update their software and systems immediately to prevent any potential attacks.

According to Oracle, the vulnerability allows hackers to bypass security controls and gain unauthorized access to sensitive data. The company has already patched the vulnerability in its own systems, but warned that other companies may not be as fortunate.

The mass-hacking campaign is believed to have started last month, with hackers targeting companies across multiple industries. So far, no specific targets or sectors have been identified, although Oracle warns that any organization could potentially be affected.

Oracle advises users to monitor their systems closely for any signs of unusual activity and report any suspicious behavior to the company’s security team immediately. The tech giant also recommends using strong passwords and keeping software up to date to prevent attacks.

The incident highlights the ongoing threat of sophisticated cyberattacks, which are becoming increasingly common as hackers continue to exploit new vulnerabilities in software and systems. As a result, companies must remain vigilant and take proactive steps to protect themselves from these types of attacks.

In a statement, Oracle said: “We urge all our customers to take immediate action to patch this vulnerability and to monitor their systems closely for any signs of unusual activity.” The company has also set up a website to provide more information about the issue and offer guidance on how to mitigate the risks.

Oracle’s warning is a timely reminder that even major tech companies are not immune to cyber threats. As the threat landscape continues to evolve, it is essential for all organizations to take proactive steps to protect themselves from these types of attacks.