On December 31, 2022, Slack a security breach that affected some of its customers. The attackers were able to gain access to private GitHub code repositories, which is concerning because companies store sensitive information on these repositories. reported In this blog post, we will look at what happened during the incident and the actions that were taken by Slack in response. We’ll also discuss similar tactics used by other companies for breaches last year, as well as actionable tips for businesses to secure their online platforms against cyber attacks. How the Attackers Gained Access to Private GitHub Code Repositories The attackers were able to gain access due to a security flaw in Slack’s authentication system. They used a technique called “brute force” to guess an organization’s password multiple times until they succeeded. Once they had access, they were able to use the token associated with that organization’s account and gain access to the private code repositories stored on GitHub. The fact that a brute force attack was successful indicates this particular portion of the authentication system was clearly overlooked or neglected. Slack’s Response In response to the incident, Slack invalidated stolen tokens and started an investigation into customer impact. They also created an update on New Year's Eve announcing the security breach and provided customers with steps to mitigate any potential risks or damages from it. In addition, they have created a page with more detailed information about how customers can protect their accounts and data going forward. The Trend The attack on Slack follows similar tactics used by other companies last year – like Apple iCloud and Facebook – who also experienced unauthorized access to customer accounts through brute force attacks. These incidents show that companies need to be vigilant when it comes to protecting customer data and privacy online if they want to avoid serious damage resulting from cyber attacks. It is clear that organizations must take adequate steps in order to protect their online platforms against cyber attacks such as these in order to maintain trust with their customers. It is also important for businesses to be transparent about any security incidents so customers know what actions need to be taken if there has been a breach of any kind. Finally, actionable tips from Slack include using two-factor authentication whenever possible and taking additional steps like restricting IP addresses or using single sign-on (SSO) services for increased security measures when managing client data online. With those tips in mind, organizations can better equip themselves against future threats and ensure their customer data remains secure at all times!