yahoo hacking | Breaking Cybersecurity News | The Hacker News

An ex-Yahoo! employee has pleaded guilty to misusing his access at the company to hack into the accounts of nearly 6,000 Yahoo users in search of private and personal records, primarily sexually explicit images and videos. According to an press note released by the U.S. Justice Department, Reyes Daniel Ruiz , a 34-year-old resident of California and former Yahoo software engineer, admitted accessing Yahoo internal systems to compromise accounts belonging to younger women, including his personal friends and work colleagues. Once he had access to the users' Yahoo accounts, Ruiz then used information obtained from users' email messages and their account's login access to hacking into their iCloud, Gmail, Facebook, DropBox, and other online accounts in search of more private material. Besides this, Ruiz also made copies of private images and videos that he found in the personal accounts of Yahoo users without their permission and stored them on a private computer a...

A 23-year-old Canadian man, who pleaded guilty last year for his role in helping Russian government spies hack into email accounts of Yahoo users and other services, has been sentenced to five years in prison. Karim Baratov (a.k.a Karim Taloverov, a.k.a Karim Akehmet Tokbergenov), a Kazakhstan-born Canadian citizen, was also ordered on Tuesday by United States Judge Vince Chhabria to pay a fine of $250,000. Baratov had previously admitted his role in the 2014 Yahoo data breach that compromised about 500 million Yahoo user accounts. His role was to "hack webmail accounts of individuals of interest to the FSB," Russia's spy agency. In November, Baratov pleaded guilty to a total of nine counts, including one count of conspiring to violate the Computer Fraud and Abuse Act, and eight counts of aggravated identity theft. According to the US Justice Department, Baratov and his co-defendant hacker Alexsey Belan worked for two agents—Dmitry Dokuchaev and Igor Sushch...

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Karim Baratov , a 22-year-old Kazakhstan-born Canadian citizen, has pleaded guilty to hacking charges over his involvement in massive 2014 Yahoo data breach that affected all three billion yahoo accounts . In March, the US Justice Department announced charges against two Russian intelligence officers (Dmitry Dokuchaev and Igor Sushchin) from Russia's Federal Security Service (FSB) and two hackers (Alexsey Belan and Karim Baratov) for breaking into yahoo servers in 2014. While Karim Baratov (Kay, a.k.a Karim Taloverov, a.k.a Karim Akehmet Tokbergenov) was arrested in Toronto at his Ancaster home by the Toronto Police Department in March this year, Alexsey Belan and both FSB officers currently reside in Russia, unlikely to be extradited. In the federal district court in San Francisco on Tuesday, Baratov admitted to helping the Russian spies and pleaded guilty to a total of nine counts which includes: One count of conspiring to violate the Computer Fraud and Abuse Act by...

Security researchers have discovered a new, sophisticated form of malware based on the notorious Zeus banking Trojan that steals more than just bank account details. Dubbed Terdot, the banking Trojan has been around since mid-2016 and was initially designed to operate as a proxy to conduct man-in-the-middle (MitM) attacks, steal browsing information such as stored credit card information and login credentials and injecting HTML code into visited web pages. However, researchers at security firm Bitdefender have discovered that the banking Trojan has now been revamped with new espionage capabilities such as leveraging open-source tools for spoofing SSL certificates in order to gain access to social media and email accounts and even post on behalf of the infected user. Terdot banking trojan does this by using a highly customized man-in-the-middle (MITM) proxy that allows the malware to intercept any traffic on an infected computer. Besides this, the new variant of Terdot...

The largest known hack of user data in the history just got tripled in size. Yahoo, the internet company that's acquired by Verizon this year, now believes the total number of accounts compromised in the August 2013 data breach, which was disclosed in December last year, was not 1 billion—it's 3 Billion . Yes, the record-breaking Yahoo data breach affected every user on its service at the time. Late last year, Yahoo revealed the company had suffered a massive data breach in August 2013, which affected 1 billion user accounts . The 2013 hack exposed user account information, including names, email addresses, telephone numbers, dates of births, hashed passwords (using MD5), and, in some cases, "encrypted or unencrypted security questions and answers," Yahoo said in 2016. At that time, Yahoo did confirm that hackers did not obtain bank account details or credit card information tied to the Yahoo accounts. The data breach was attributed to state-sponsored ...

The 2014 Yahoo hack disclosed late last year that compromised over 500 million Yahoo user accounts was believed to be carried out by a state-sponsored hacking group. Now, two Russian intelligence officers and two criminal hackers have been charged by the US government in connection with the 2014 Yahoo hack that compromised about 500 million Yahoo user accounts, the Department of Justice announced Wednesday. According to the prosecutors, at least 30 million accounts were accessed as part of a spam campaign to access the email contents of thousands of people, including journalists, government officials, and technology company employees. The four defendants — Two officers from the Russian Federal Security Service (FSB) and two other hackers — are identified as: Dmitry Aleksandrovich Dokuchaev, 33 — an officer in the FSB Center for Information Security at the time of the hack, and now Russian national and resident. Igor Anatolyevich Sushchin, 43 — an FSB officer, a superior...

Yahoo has just revealed that around 32 million user accounts were accessed by hackers in the last two years using a sophisticated cookie forging attack without any password. These compromised accounts are in addition to the Yahoo accounts affected by the two massive data breaches that the company disclosed in last few months. The former tech giant said that in a regulatory filing Wednesday that the cookie caper is likely linked to the "same state-sponsored actor" thought to be behind a separate, 2014 data breach that resulted in the theft of 500 Million user accounts . "Based on the investigation, we believe an unauthorized third party accessed the company's proprietary code to learn how to forge certain cookies," Yahoo said in its annual report filed with the US Securities and Exchange Commission (SEC). "The outside forensic experts have identified approximately 32 million user accounts for which they believe forged cookies were used or taken...

Has Yahoo rebuilt your trust again? If yes, then you need to think once again, as the company is warning its users of another hack. Last year, Yahoo admitted two of the largest data breaches on record. One of which that took place in 2013 disclosed personal details associated with more than 1 Billion Yahoo user accounts . Well, it's happened yet again. Yahoo sent out another round of notifications to its users on Wednesday, warning that their accounts may have been compromised as recently as last year after an ongoing investigation turned up evidence that hackers used forged cookies to log accounts without passwords. The company quietly revealed the data breach in security update in December 2016, but the news was largely overlooked, as the statement from Yahoo provided information on a separate data breach that occurred in August 2013 involving more than 1 billion accounts. The warning message sent Wednesday to some Yahoo users read: "Based on the ongoing i...

Recently Yahoo disclosed a three-year-old massive data breach in its company that exposed personal details associated with more than 1 Billion user accounts , which is said to be the largest data breach of any company ever. The new development in Yahoo!'s 2013 data breach is that the hacker sold its over Billion-user database on the Dark Web last August for $300,000, according to Andrew Komarov, Chief Intelligence Officer (CIO) at security firm InfoArmor. Komarov told the New York Times that three different buyers, including two "prominent spammers" and the third, is believed to be involved in espionage tactics paid $300,000 to gain control of the entire database. The hacker group that breached Yahoo and sold the database is believed to based in Eastern Europe, but the company still does not know if this information is accurate or not. Beside full names, passwords, date of births and phone numbers of 1 Million Yahoo users, the database also includes backup em...

In what believe to be the largest data breach in history, Yahoo is reporting a massive data breach that disclosed personal details associated with more than 1 Billion user accounts in August 2013. …And it's separate from the one disclosed by Yahoo! in September, in which hackers compromised as many as 500 Million user accounts in late 2014. What's troubling is that the company has not been able to discovered how "an unauthorized third party" were able to steal the data associated with more than one Billion users. The data breach officially disclosed on Wednesday actually occurred in 2013 and, just like the one in 2014, allowed the cyber crooks to obtain personal information of its users but not credit card details. Here's what Yahoo's chief information security officer Bob Lord says the hackers obtained: "The stolen user account information may have included names, email addresses, telephone numbers, dates of birth, hashed passwords (using...

Yahoo! was recently impacted by a critical web application vulnerabilities which left website's database and server vulnerable to hackers. A cyber security expert and penetration tester, Ebrahim Hegazy a.k.a Zigoo from Egypt , has found a serious SQL injection vulnerability in Yahoo's website that allows an attacker to remotely execute any commands on its server with Root Privileges. According to Hegazy blog post , the SQLi vulnerability resides in a domain of Yahoo! website i.e. https://innovationjockeys.net/tictac_chk_req.php . Any remote user can manipulate the input to the " f_id " parameter in the above URL, which could be exploited to extract database from the server. While pentesting, he found username and password ( encoded as Base64 ) of Yahoo!' admin panel stored in the database. He decoded the Administrator Password and successfully Logged in to the Admin panel. Furthermore, SQL injection flaw also facilitate the attacker to exploit Remote Cod...

Yahoo! has broke its silence and explained why it handed over its users' data to United States federal officials, thereby promising to expose those court documents which ordered the snooping. The US government threatened Internet giant with a $250,000 fine per day several years ago if it failed to comply with National Security Agency 's notorious PRISM Surveillance program, according to unclassified court documents released by Yahoo! on Thursday. " The released documents underscore how we had to fight every step of the way to challenge the US Government's surveillance efforts ," the company's general counsel Ron Bell said on Yahoo's Tumblr page . " At one point, the US Government threatened the imposition of $250,000 in fines per day if we refused to comply. " The documents released by Yahoo! shed new lights on the NSA's secret surveillance program PRISM, which was previously leaked from the agency's confidential documents provided by Global su...

Yahoo offers a web browser toolbar which includes apps for leading sites like Facebook, Yahoo! Mail, Weather and News. Yahoo Toolbar also known as Y! Toolbar is available for Internet Explorer, Firefox and Google Chrome web browsers. Yahoo Toolbar is one of the most popular and widely installed web browser add-on/extension. Many popular softwares like Java Update and thousands of free software including some Antivirus products promote Yahoo toolbar and bundled it into their installer files. A vulnerability has been reported in Yahoo Toolbar by Security Researcher Behrouz SAdeghipour , which causes cross site scripting flaw on popular websites like Flickr, Yahoo, Google, Pinterest, Youtube, Amazon, Twitter and many more. Yahoo Toolbar vulnerability triggers all previous non-exploitable XSS payloads on popular websites as shown below in multiple screenshots provided by Behrouz to The Hacker News .  The vulnerability resides in the way Toolbar intercept...

ON HIGH-PRIORITY YAHOO! is finally rolling out encryption implementation over their site and services in order to protect users. Yahoo is rapidly becoming one of the most aggressive supporters of encryption, as in January this year Yahoo enabled the HTTPS connections by default, that automatically encrypts the connections between users and its email service. November last year, Yahoo revealed plans to encrypt all information that moves between its data centers and finally from 31st March Yahoo has taken another leap in user-data protection through the deployment of new encryption technologies. NSA TARGET LIST -  GMAIL, YAHOO, ... many more. Last year, It was revealed by  Edward Snowden  that under MUSCULAR program , the spy agency NSA was infiltrating the private data links between Google and Yahoo data centers. After finding themselves in the NSA's target list, Yahoo! and Google forced to think hard about the security and privacy of its users. Google had re...

Yahoo! The 4th most visited website on the Internet has been found vulnerable multiple times, and this time a hacker has claimed to spot a critical vulnerability in the Yahoo! sub-domain ' suggestions.yahoo.com ', which could allow an attacker to delete the all the posted thread and comments on Yahoo's Suggestion Board website. Egyptian Cyber Security Analyst, ' Ibrahim Raafat ', found and demonstrated 'Insecure Direct Object Reference Vulnerability' in Yahoo's website on his blog . Exploiting the flaw escalates the user privileges that allow a hacker to delete more than 365,000 posts and 1,155,000 comments from Yahoo! Database . Technical details of the vulnerability are as explained below: Deleting  Comments: While deleting his own comment, Ibrahim noticed the  HTTP Header of POST request, i.e. prop=addressbook& fid=367443 &crumb=Q4 . PSLBfBe . & cid=1236547890 &cmd=delete_comment Where parameter ' fid ' is...

Cyber Security Expert and Penetration tester, Ebrahim Hegazy has found a serious vulnerability in Yahoo's website that allows an attacker to remotely execute any commands on the server i.e. Remote Command Execution vulnerability. According to Ebrahim blog post , the vulnerability resides in a Chinese subdomin of Yahoo website i.e. https://tw.user.mall.yahoo.com/rating/list?sid= $Vulnerability Any remote user can manipulate the input to the sid parameter in the above URL, that passes the parameter value to an eval() PHP function on the server end. If an attacker is able to inject a PHP code into this web application, it forces the server to execute it, but this method only limited by what PHP is capable of. In a POC Video he has successfully demonstrated few Payloads: Example-1: https://tw.user.mall.yahoo.com/rating/list?sid= ${@print(system("dir"))} Example-2: https://tw.user.mall.yahoo.com/rating/list?sid= ${@print(system("ps"))} Last week, He ...

After the release of NSA Secret spying over Internet communications, I am expecting from all tech companies to make surveillance significantly harder. Yahoo has HTTPS encryption support since late 2012, but users had to opt in to use the feature. Documents revealed by the Edward Snowden shows that the NSA secretly accessed data from several tech giants, including Yahoo, by intercepting unencrypted Internet traffic in a program called Muscular. As promised back in October 2013,  Yahoo  has finally enabled the HTTPS connections by default for their users, that will now automatically encrypts the connections between users and its email service. Jeff Bonforte , senior vice-president of communication products at Yahoo announced  in a blog post: It is 100% encrypted by default and protected with 2,048 bit certificates. This encryption extends to your emails, attachments, contacts, as well as Calendar and Messenger in Mail. HTTPS by default is really a good news fo...

Offering cash rewards for vulnerability reports has become something of a norm when it comes to big tech companies these days.  Yahoo has changed its bug bounty policies following a deluge of negative feedback in the wake of the news that ethical hackers were rewarded with $12.50 in gift vouchers for security flaw discoveries. The company unveiled a new program to reward reporters who shed light on bugs and vulnerabilities classified as new, unique and/or high risk issues. Starting October 31, 2013, individuals and firms who report bugs will be rewarded with anything between $150-$15,000. " The amount will be determined by a clear system based on a set of defined elements that capture the severity of the issue ," Director of security, Ramses Martinez, announced . Yahoo denied that its new program was a response to the criticism, saying it was already working on a new bug bounty system before the furore. Martinez begins by labelling himself as the ...

Today more and more companies are looking for external security researchers to help identify vulnerabilities and weaknesses in their applications through Bug Bounty Programs. While companies like Facebook and Google are paying out hundreds of dollars to researchers for reporting security vulnerabilities, But according to Yahoo! Your email's security worth only $12.50 ! Yahoo is not having very good run in the reputation department when it comes to user security. Researchers at High-Tech Bridge found a few bugs, and were not exactly impressed with Yahoo's reward. They pointed out cross-site scripting (XSS) flaws affecting two Yahoo domains and in return they received $12.50 bounties for each vulnerability they found. This amount was given as a discount code that can only be used in the Yahoo Company Store, which sells Yahoo's corporate T-shirts, cups, pens and other accessories. This isn't exactly a great reward for spending time reporting security ...

It seems that 2013 is the " Data Leakage Year "! Many customers' information and confidential data have been published on the internet coming from government institutions, famous vendors, and companies too. Ebrahim Hegazy(@Zigoo0) an Egyptian information security advisor who found a high severity vulnerability in " Avira license daemon " days ago, is on the news again, but this time for finding and reporting Blind SQL Injection vulnerability in one of Yahoo! E-marketing applications. SQL Injection vulnerabilities are ranked as Critical vulnerabilities, because if used by Hackers it will cause a database breach which will lead to confidential information leakage. A time based blind SQL Injection web vulnerability is detected in the official Yahoo! TW YSM Marketing Application Service. The vulnerability allows remote attackers to inject own SQL commands to breach the database of that vulnerable application and get access to the user data. ...