Thursday, July 18, 2024
EHA

800 Million Emails Leaked Online From Worlds Largest Email Verification Service

Researchers discovered the 150GB volume of biggest and most comprehensive email unprotected MongoDB that leaked 800 Million Email data online that belongs to Verifications.io.

The leaked email contains sensitive information including personally identifiable information (PII) and the complete data being available in public that can be accessed by anyone on the internet.

This Database exactly contains 808,539,939 records with the name of
“mailEmailDatabase” where there is 3 different folders under the folder named as a “collection”.

  • Emailrecords (count: 798,171,891 records)
  • emailWithPhone (count: 4,150,600 records)
  • businessLeads (count: 6,217,358 records)

Researchers dive deeper and analyse the data using with Troy Hunt’s HaveIBeenPwned database that reveals leaked data is one of the collections of previously leaked data but this databased contain completely unique data.

“Although, not all records contained the detailed profile information about the email owner, a large amount of records were very detailed. We are still talking about millions of records.”

Further analysis revealed that the data owned by a company named ‘Verifications.io that the largest ‘Enterprise Email Validation service provider.

‘Verifications.io provide a validation service for its customer and it validate the emails and send the result back to the customer about the valid email list.

According to the security researcher , the email validation methods works in the following way,

  1. Someone uploads a list of email addresses that they want to validate.
  2. Verifications.io has a list of mail servers and internal email accounts that they use to “validate” an email address.
  3. They do this by literally sending the people an email. If it does not bounce, the email is validated.
  4. If it bounces, they put it in a bounce list so they can easily validate later on.

In practically, If cybercriminals have a 100 of companies hacked email address in millions but he doesn’t know which one is valid and invalid.

In this case, he uploads all of his potential email addresses to a service like verifications.io then the email verification service sends tens of thousands of emails to validate these users in order to identify valid and invalid email address.

” Each one of the users on the list gets their own spam message saying “hi”. Then the threat actor gets a cleaned, verified, and valid list of users at these companies. Now he knows who works there and who does not, and he can start a more focused phishing or brute forcing campaign.” researcher said.

You can follow us on LinkedinTwitterFacebook for daily Cybersecurity updates also you can take the Best Cybersecurity courses online to keep your self-updated.

Also Read:

Personal Data of 458,388 Delhi Citizens Exposed Online from an Unprotected Database

2.7 Million Sensitive Medical Recorded Calls Audio Exposed on The Internet

Real-time Location of More Than 11k Indian Buses are Exposed Online

2.4 Million Blur Password Manager Users Data Exposed Online

Website

Latest articles

Octo Tempest Know for Attacking VMWare ESXi Servers Added RansomHub & Qilin to Its Arsenal

Threat actors often attack VMware ESXi servers since they accommodate many virtual machines, which...

TAG-100 Actors Using Open-Source Tools To Attack Gov & Private Orgs

Hackers exploit open-source tools to execute attacks because they are readily available, well-documented, and...

macOS Users Beware Of Weaponized Meeting App From North Korean Hackers

Meeting apps are often targeted and turned into weapons by hackers as they are...

Hackers Exploiting Legitimate RMM Tools With BugSleep Malware

Since October 2023, MuddyWater, which is an Iranian threat group linked to MOIS, has...

Cybercriminals Exploit Attack on Donald Trump for Crypto Scams

Researchers at Bitdefender Labs remain ever-vigilant, informing users about the latest scams and internet...

New TE.0 HTTP Request Smuggling Flaw Impacts Google Cloud Websites

HTTP Request Smuggling is a flaw in web security that is derived from variations...

Volcano Demon Group Attacking Organizations With LukaLocker Ransomware

The Volcano Demon group has been discovered spreading a new ransomware called LukaLocker, which...
Balaji
Balaji
BALAJI is an Ex-Security Researcher (Threat Research Labs) at Comodo Cybersecurity. Editor-in-Chief & Co-Founder - Cyber Security News & GBHackers On Security.

Free Webinar

Low Rate DDoS Attack

9 of 10 sites on the AppTrana network have faced a DDoS attack in the last 30 days.
Some DDoS attacks could readily be blocked by rate-limiting, IP reputation checks and other basic mitigation methods.
More than 50% of the DDoS attacks are employing botnets to send slow DDoS attacks where millions of IPs are being employed to send one or two requests per minute..
Key takeaways include:

  • The mechanics of a low-DDoS attack
  • Fundamentals of behavioural AI and rate-limiting
  • Surgical mitigation actions to minimize false positives
  • Role of managed services in DDoS monitoring

Related Articles