Krebs on Security

DECEMBER 13, 2021

The consulting firm PricewaterhouseCoopers recently published lessons learned from the disruptive and costly ransomware attack in May 2021 on Ireland’s public health system. The unusually candid post-mortem found that nearly two months elapsed between the initial intrusion and the launching of the ransomware.

Healthcare 325

Healthcare Ransomware Antivirus Hacking 325

Krebs on Security

JANUARY 28, 2022

In December 2021, researchers discovered a new ransomware-as-a-service named ALPHV (a.k.a. “ BlackCat “), considered to be the first professional cybercrime group to create and use a ransomware strain written in the Rust programming language. Image: Varonis. ” Meanwhile, the U.S.

Ransomware 328

Ransomware Accountability Cybercrime Malware 328

Krebs on Security

JUNE 14, 2022

Cybercrime groups that specialize in stealing corporate data and demanding a ransom not to publish it have tried countless approaches to shaming their victims into paying. The latest innovation in ratcheting up the heat comes from the ALPHV/BlackCat ransomware group, which has traditionally published any stolen victim data on the Dark Web.

Ransomware 305

Ransomware Internet Internet Cybercrime 305

Krebs on Security

MARCH 1, 2022

A Ukrainian security researcher this week leaked several years of internal chat logs and other sensitive data tied to Conti , an aggressive and ruthless Russian cybercrime group that focuses on deploying its ransomware to companies with more than $100 million in annual revenue. On Sunday, Feb. “There will be panic. 428 hospitals.”

Ransomware 303

Ransomware Healthcare Cybercrime Government 303

Security Affairs

DECEMBER 26, 2024

A ransomware attack on Pittsburgh Regional Transit (PRT) was the root cause of the agency’s service disruptions. On December 23, 2024, Pittsburgh Regional Transit (PRT) announced it was actively responding to a ransomware attack that was first detected on Thursday, December 19.

Ransomware 119

Ransomware Cyber Attacks Hacking Cybersecurity 119

Krebs on Security

DECEMBER 19, 2023

Federal Bureau of Investigation (FBI) disclosed today that it infiltrated the world’s second most prolific ransomware gang, a Russia-based criminal group known as ALPHV and BlackCat. “We will continue to prioritize disruptions and place victims at the center of our strategy to dismantle the ecosystem fueling cybercrime.”

Ransomware 314

Ransomware Cybercrime Advertising Encryption 314

Krebs on Security

NOVEMBER 14, 2024

Shefel claims the true mastermind behind the Target and other retail breaches was Dmitri Golubov , an infamous Ukrainian hacker known as the co-founder of Carderplanet, among the earliest Russian-language cybercrime forums focused on payment card fraud. “I’m also godfather of his second son.”

Retail 254

Retail Advertising Cryptocurrency Marketing 254

Security Affairs

NOVEMBER 29, 2024

Russian authorities arrested ransomware affiliate Mikhail Matveev, aka Wazawaka, for developing malware and ties to hacking groups. In May 2023, the US Justice Department charged Russian national Mikhail Pavlovich Matveev for his alleged role in multiple ransomware attacks. The Treasury Department sanctioned the ransomware actor.

Ransomware 116

Ransomware Healthcare Hacking Malware 116

Security Boulevard

APRIL 20, 2021

As we head deeper into 2021, it’s beginning to feel like there’s a light at the end of the tunnel and we can all take a deep breath. Last year also saw record number cybercrime complaints, with the FBI […]. The post Ransomware 2021 has evolved. The post Ransomware 2021 has evolved.

Network Security 145

Network Security Ransomware Cybercrime Phishing 145

The Last Watchdog

DECEMBER 16, 2021

In 2021, law enforcement continued making a tremendous effort to track down, capture and arrest ransomware operators, to take down ransomware infrastructure, and to claw back ransomware payments. These transformations for ransomware groups will become the source of new attacks. Before BlackMatter it was DarkSide.

CISO 262

CISO Ransomware Risk Authentication 262

Security Affairs

OCTOBER 9, 2023

A threat actor has leaked the source code for the first version of the HelloKitty ransomware on a Russian-speaking cybercrime forum. kapuchin0 claims that the leaked code is the first breach of the HelloKitty ransomware. kapuchin0 claims that the leaked code is the first breach of the HelloKitty ransomware.

Cybercrime 139

Cybercrime Ransomware DDOS Encryption 139

Security Affairs

DECEMBER 21, 2024

Romanian national was sentenced to 20 years in prison for his role in NetWalker ransomware attacks, pleading guilty to fraud charges in June. Romanian national Daniel Christian Hulea, 30, was sentenced to 20 years in prison for his role in NetWalker ransomware attacks. In January 2021, law enforcement authorities in the U.S.

Ransomware 106

Ransomware Healthcare Government Cryptocurrency 106

Krebs on Security

MARCH 7, 2022

Three stories here last week pored over several years’ worth of internal chat records stolen from the Conti ransomware group, the most profitable ransomware gang in operation today. penned a two-part analysis on why smart contracts will make ransomware more profitable. ” Stern wrote.

Ransomware 267

Ransomware Cryptocurrency DDOS Scams 267

SecureList

OCTOBER 20, 2021

Having been in the field for so long, we have witnessed some major changes in the cybercrime world’s modus operandi. This report shares our insights into the Russian-speaking cybercrime world and the changes in how it operates that have happened in the past five years.

Cybercrime 145

Cybercrime Banking Malware Ransomware 145

Security Affairs

NOVEMBER 19, 2021

Researchers revealed that Conti ransomware operators earned at least $25.5 million from ransom payments since July 2021. A study conducted by Swiss security firm Prodaft with the support of blockchain analysis firm Elliptic revealed that the operators of the Conti ransomware have earned at least $25.5 bitcoin. . bitcoin. .”

Ransomware 142

Ransomware Cybercrime Malware Hacking 142

Tech Republic Security

JULY 15, 2021

IT and OT environments are increasing targets and threat actors are using Dark Web forums to launch cybercrimes, according to Accenture's 2021 Cyber Threat Intelligence report.

Cyber threats 217

Cyber threats Cybercrime Ransomware 217

Krebs on Security

MARCH 2, 2022

Earlier this week, a Ukrainian security researcher leaked almost two years’ worth of internal chat logs from Conti , one of the more rapacious and ruthless ransomware gangs in operation today. – Penetration Testers/Hackers: Those on the front lines battling against corporate security teams to steal data, and plant ransomware.

Ransomware 237

Ransomware Antivirus Malware Cybercrime 237

Krebs on Security

FEBRUARY 14, 2022

In January, KrebsOnSecurity examined clues left behind by “ Wazawaka ,” the hacker handle chosen by a major ransomware criminal in the Russian-speaking cybercrime scene. The other handle that appeared tied to Wazawaka was “Orange,” the founder of the RAMP ransomware forum.

Ransomware 242

Ransomware VPN Cybercrime Accountability 242

Security Affairs

APRIL 30, 2021

UNC2447 cybercrime gang exploited a zero-day in the Secure Mobile Access (SMA), addressed by SonicWall earlier this year, before the vendor released a fix. Mandiant has linked the use of SOMBRAT to the deployment of ransomware, which has not been previously reported publicly.” ” reads the analysis published by FireEye.

Cybercrime 142

Cybercrime Ransomware Malware Mobile 142

SecureList

MAY 12, 2021

As the world marks the second Anti-Ransomware Day, there’s no way to deny it: ransomware has become the buzzword in the security community. Yet, much of the media attention ransomware gets is focused on chronicling which companies fall prey to it. Part I: Three preconceived ideas about ransomware.

Ransomware 145

Ransomware Encryption Malware Cybercrime 145

Krebs on Security

NOVEMBER 8, 2021

Department of Justice today announced the arrest of Ukrainian man accused of deploying ransomware on behalf of the REvil ransomware gang, a Russian-speaking cybercriminal collective that has extorted hundreds of millions from victim organizations. The DOJ also said it had seized $6.1 Vasinskyi was arrested Oct. 3 was Lublin, Poland.

Ransomware 346

Ransomware Cybercrime System Administration Passwords 346

Tech Republic Security

MAY 16, 2022

Ransomware is probably the type of cybercrime that has made headlines the most in 2021, and 2022 seems to follow that trend. Yet it is still evolving, and new ransomware seems more adaptive, resilient and more industrialized.

Ransomware 148

Ransomware Cybercrime 148

Security Affairs

OCTOBER 26, 2021

The FBI published a flash alert to warn of the activity of the Ranzy Locker ransomware that had already compromised tens of US companies. The FBI published a flash alert to warn of Ranzy Locker ransomware operations that had already compromised at least 30 US companies this year. SecurityAffairs – hacking, Ranzy Locker ransomware).

Ransomware 143

Ransomware Firmware Antivirus Accountability 143

The Last Watchdog

JUNE 20, 2022

IABs specialize in one specific area of the cybercrime ecosystem where the victims are accumulated and then sold off to the highest bidder,” he says. Or the payload might be a data exfiltration routine — or a full-blown ransomware attack. Speaking of ransomware, cyber extortion continues to persist at a plague level.

Ransomware 235

Ransomware Digital transformation Marketing Software 235

SecureList

AUGUST 1, 2024

Introduction Cybercriminals who specialize in ransomware do not always create it themselves. They have many other ways to get their hands on ransomware samples: buying a sample on the dark web, affiliating with other groups or finding a (leaked) ransomware variant. You will find a few excerpts from these below.

Ransomware 119

Ransomware Cybercrime Education Malware 119

Krebs on Security

NOVEMBER 22, 2021

In August, KrebsOnSecurity warned that scammers were contacting people and asking them to unleash ransomware inside their employer’s network, in exchange for a percentage of any ransom amount paid by the victim company. According to the FBI’s Internet Crime Complaint Center ( IC3 ), consumers and businesses reported more than $4.2

Scams 321

Scams Cybercrime Banking Identity Theft 321

Security Affairs

NOVEMBER 3, 2021

Experts warn of the availability in the cybercrime underground of offers for initial access to networks of players in global supply chains. In August 2021 , an affiliate of the Conti ransomware gang claimed access to corporate networks belonging to a U.S.-based based commodity transportation services company. Pierluigi Paganini.

Cybercrime 132

Cybercrime VPN Ransomware Hacking 132

SecureWorld News

NOVEMBER 22, 2024

The United States Department of Justice (DOJ) has unsealed charges against five individuals accused of orchestrating sophisticated phishing campaigns tied to the notorious Scattered Spider cybercrime group.

Phishing 103

Phishing Identity Theft Cryptocurrency Cybercrime 103

Krebs on Security

NOVEMBER 21, 2024

technology companies between 2021 and 2023, including LastPass , MailChimp , Okta , T-Mobile and Twilio. That Joeleoli moniker registered on the cybercrime forum OGusers in 2018 with the email address joelebruh@gmail.com , which also was used to register accounts at several websites for a Joel Evans from North Carolina.

Identity Theft 250

Identity Theft Phishing Cryptocurrency Accountability 250

Security Affairs

NOVEMBER 1, 2021

The US FBI has published a flash alert warning private organizations of the evolution of the HelloKitty ransomware (aka FiveHands). Federal Bureau of Investigation (FBI) has sent out a flash alert warning private industry of a new feature of the HelloKitty ransomware gang (aka FiveHands). SecurityAffairs – hacking, cybercrime).

DDOS 145

DDOS Ransomware Cybercrime Encryption 145

Security Affairs

MAY 27, 2022

The FBI warns organizations in the higher education sector of credentials sold on cybercrime forums that can allow threat actors to access their networks. Crooks obtain the information by conducting spear-phishing and ransomware attacks, or other means. ” reads the alert published by the FBI. Pierluigi Paganini.

Cybercrime 145

Cybercrime Education Accountability Phishing 145

Security Affairs

MARCH 13, 2025

The Medusa ransomware operation hit over 300 organizations in critical infrastructure sectors in the United States until February 2025. The FBI, CISA, and MS-ISAC have issued a joint advisory detailing Medusa ransomware tactics, techniques, and indicators of compromise (IOCs) based on FBI investigations as recent as February 2025.

Ransomware 68

Ransomware Encryption Cryptocurrency Insurance 68

Security Affairs

MARCH 15, 2024

US DoJ sentenced a Moldovan national (31) to 42 months in federal prison for operating the E-Root cybercrime marketplace. Diaconu was operating the E-Root cybercrime marketplace. Follow me on Twitter: @securityaffairs and Facebook and Mastodon Pierluigi Paganini ( SecurityAffairs – hacking, cybercrime)

Cybercrime 130

Cybercrime Cryptocurrency Advertising Passwords 130

Penetration Testing

MARCH 4, 2024

When the Babuk ransomware group disbanded in 2021, it seemed like a minor victory in the ongoing battle against cybercrime.

Healthcare 128

Healthcare Penetration Testing Ransomware Cybercrime 128

Krebs on Security

DECEMBER 3, 2021

Rarely do cybercriminal gangs that deploy ransomware gain the initial access to the target themselves. In this post we’ll look at the clues left behind by “ Babam ,” the handle chosen by a cybercriminal who has sold such access to ransomware groups on many occasions over the past few years. com and wwwpexpay[.]com.

Ransomware 346

Ransomware Passwords Accountability Cybercrime 346

Krebs on Security

FEBRUARY 9, 2023

Authorities in the United States and United Kingdom today levied financial sanctions against seven men accused of operating “ Trickbot ,” a cybercrime-as-a-service platform based in Russia that has enabled countless ransomware attacks and bank account takeovers since its debut in 2016. companies and government entities.

Hacking 235

Hacking Cybercrime Ransomware Government 235

SecureWorld News

MARCH 15, 2023

The FBI's Internet Crime Complaint Center (IC3) has released its 2022 Internet Crime Report , which reveals the trends and impacts of cybercrime in the United States. The report shows that phishing schemes were the most common type of cybercrime reported by victims in 2022, with 300,497 complaints. billion for BEC attacks.

Cybercrime 135

Cybercrime Scams Cryptocurrency Identity Theft 135