Security Experts:

Connect with us

Hi, what are you looking for?

SecurityWeekSecurityWeek

Data Protection

Thousands of Organizations Expose Sensitive Data via Google Groups

Google has issued a warning to G Suite users after researchers discovered that thousands of organizations expose sensitive information through misconfigured Google Groups instances.

Google has issued a warning to G Suite users after researchers discovered that thousands of organizations expose sensitive information through misconfigured Google Groups instances.

The Google Groups service allows users to create mailing lists, host internal discussions, and process support tickets. These types of communications can include highly sensitive information, which is why it’s important for companies to ensure that privacy and security settings are configured properly.

When a group is configured, its creator has to set sharing options for “Outside this domain – access to groups” to either “Private” or “Public on the Internet.” While the default option is “Private,” many organizations have set it to “Public on the Internet,” in many cases likely not realizing that anyone can access the group.

Data exposed through misconfigured Google Groups

Researchers at Kenna Security have conducted an analysis of roughly 2.5 million domains and identified more than 9,600 organizations that had allowed public access to their groups. After taking a closer look at a random sample of 171 groups, the company estimated that nearly 3,000 of the over 9,600 companies leaked some type of sensitive information.

The impacted organizations include Fortune 500 companies, universities, hospitals, media firms, financial institutions, and even government agencies.

The exposed information includes financial data, passwords, and documents containing confidential information.

“Given the sensitive nature of this information, possible implications include spear-phishing, account takeover, and a wide variety of case-specific fraud and abuse,” Kenna Security said in a blog post.

The company notified some of the organizations leaking highly sensitive data and pointed out that the “views” counter was in a vast majority of cases at zero, which indicates that no one had seen the information.

Kenna has also notified Google, but since this is not an actual vulnerability, the issue cannot be addressed with a patch. The tech giant did say, however, that it’s always reviewing its products to “help users make decisions that are appropriate for their organizations.”

Google has also published a post on its G Suite blog, providing advice on how users can configure their Google Groups settings to better protect their data.

This is not the first time researchers have warned about the risks associated with misconfigured Google Groups instances. Last year, cloud security firm RedLock warned that hundreds of organizations were likely exposing sensitive data through Google Groups. At the time, the company found names, email and home addresses, employee salary data, sales pipeline data, and customer passwords in the exposed groups.

Related: Misconfigured Jenkins Servers Leak Sensitive Data

Related: 1.5 Billion Sensitive Documents on Open Internet

Related: Republican Party Contractor Exposes Details of 198 Million American Voters

Written By

Eduard Kovacs (@EduardKovacs) is a contributing editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

Click to comment

Expert Insights

Related Content

Application Security

Cycode, a startup that provides solutions for protecting software source code, emerged from stealth mode on Tuesday with $4.6 million in seed funding.

Application Security

Many developers and security people admit to having experienced a breach effected through compromised API credentials.

Application Security

Electric car maker Tesla is using the annual Pwn2Own hacker contest to incentivize security researchers to showcase complex exploit chains that can lead to...

Cybersecurity Funding

Los Gatos, Calif-based data protection and privacy firm Titaniam has raised $6 million seed funding from Refinery Ventures, with participation from Fusion Fund, Shasta...

Application Security

Software maker Adobe on Tuesday released security patches for 29 documented vulnerabilities across multiple enterprise-facing products and warned that hackers could exploit these bugs...

Cybercrime

A database containing over 235 million unique records of Twitter users is now available for free on the web, cybercrime intelligence firm Hudson Rock...

Application Security

Fortinet on Monday issued an emergency patch to cover a severe vulnerability in its FortiOS SSL-VPN product, warning that hackers have already exploited the...

Application Security

Virtualization technology giant VMware on Tuesday shipped urgent updates to fix a trio of security problems in multiple software products, including a virtual machine...