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Internet infrastructure giant Akamai last week released a special State of the Internet report. Normally, the quarterly accounting of noteworthy changes in distributed denial-of-service (DDoS) attacks doesn’t delve into attacks on specific customers. But this latest Akamai report makes an exception in describing in great detail the record-sized attack against KrebsOnSecurity.com in September, the
It may soon become easier for Internet service providers to anticipate and block certain types of online assaults launched by Web-based attack-for-hire services known as “booter” or “stresser” services, new research released today suggests. The findings come from researchers in Germany who’ve been studying patterns that emerge when miscreants attempt to mass-scan the entire Internet looking for sy
IoT Device Maker Vows Product Recall, Legal Action Against Western Accusers A Chinese electronics firm pegged by experts as responsible for making many of the components leveraged in last week’s massive attack that disrupted Twitter and dozens of popular Web sites has vowed to recall some of its vulnerable products, even as it threatened legal action against this publication and others for alleged
Hacked Cameras, DVRs Powered Today’s Massive Internet Outage A massive and sustained Internet attack that has caused outages and network congestion today for a large number of Web sites was launched with the help of hacked “Internet of Things” (IoT) devices, such as CCTV video cameras and digital video recorders, new data suggests. Earlier today cyber criminals began training their attack cannons
Criminals this morning massively attacked Dyn, a company that provides core Internet services for Twitter, SoundCloud, Spotify, Reddit and a host of other sites, causing outages and slowness for many of Dyn’s customers. Twitter is experiencing problems, as seen through the social media platform Hootsuite. In a statement, Dyn said that this morning, October 21, Dyn received a global distributed den
The source code that powers the “Internet of Things” (IoT) botnet responsible for launching the historically large distributed denial-of-service (DDoS) attack against KrebsOnSecurity last month has been publicly released, virtually guaranteeing that the Internet will soon be flooded with attacks from many new botnets powered by insecure routers, IP cameras, digital video recorders and other easily
John Gilmore, an American entrepreneur and civil libertarian, once famously quipped that “the Internet interprets censorship as damage and routes around it.” This notion undoubtedly rings true for those who see national governments as the principal threats to free speech. However, events of the past week have convinced me that one of the fastest-growing censorship threats on the Internet today com
On Tuesday evening, KrebsOnSecurity.com was the target of an extremely large and unusual distributed denial-of-service (DDoS) attack designed to knock the site offline. The attack did not succeed thanks to the hard work of the engineers at Akamai, the company that protects my site from such digital sieges. But according to Akamai, it was nearly double the size of the largest attack they’d seen pre
Last week, KrebsOnSecurity detailed how BackConnect Inc. — a company that defends victims against large-scale distributed denial-of-service (DDoS) attacks — admitted to hijacking hundreds of Internet addresses from a European Internet service provider in order to glean information about attackers who were targeting BackConnect. According to an exhaustive analysis of historic Internet records, Back
Israeli Online Attack Service ‘vDOS’ Earned $600,000 in Two Years vDOS — a “booter” service that has earned in excess of $600,000 over the past two years helping customers coordinate more than 150,000 so-called distributed denial-of-service (DDoS) attacks designed to knock Web sites offline — has been massively hacked, spilling secrets about tens of thousands of paying customers and their targets.
If you use an Apple iPhone, iPad or other iDevice, now would be an excellent time to ensure that the machine is running the latest version of Apple’s mobile operating system — version 9.3.1. Failing to do so could expose your devices to automated threats capable of rendering them unresponsive and perhaps forever useless. Zach Straley demonstrating the fatal Jan. 1, 1970 bug. Don’t try this at home
Hospital Declares ‘Internal State of Emergency’ After Ransomware Infection A Kentucky hospital says it is operating in an “internal state of emergency” after a ransomware attack rattled around inside its networks, encrypting files on computer systems and holding the data on them hostage unless and until the hospital pays up. A streaming red banner on Methodisthospital.net warns that a computer vir
Spammers are abusing ill-configured U.S. dot-gov domains and link shorteners to promote spammy sites that are hidden behind short links ending in”usa.gov”. Spam purveyors are taking advantage of so-called “open redirects” on several U.S. state Web sites to hide the true destination to which users will be taken if they click the link. Open redirects are potentially dangerous because they let spamm
If you have ever walked up to an ATM to withdraw cash only to decide against it after noticing a telephone or ethernet cord snaking from behind the machine to a jack in the wall, your paranoia may not have been misplaced: ATM maker NCR is warning about skimming attacks that involve keypad overlays, hidden cameras and skimming devices plugged into the ATM network cables to intercept customer card d
Ransomware — malicious software that encrypts the victim’s files and holds them hostage unless and until the victim pays a ransom in Bitcoin — has emerged as a potent and increasingly common threat online. But many Internet users are unaware that ransomware also can just as easily seize control over files stored on cloud services. Toni Casala found this out the hard way. Casala’s firm — Children i
AshleyMadison.com, a site that helps married people cheat and whose slogan is “Life is Short, have an Affair,” recently put up a half million (Canadian) dollar bounty for information leading to the arrest and prosecution of the Impact Team — the name chosen by the hacker(s) who recently leaked data on more than 30 million Ashley Madison users. Here is the first of likely several posts examining in
Large caches of data stolen from online cheating site AshleyMadison.com have been posted online by an individual or group that claims to have completely compromised the company’s user databases, financial records and other proprietary information. The still-unfolding leak could be quite damaging to some 37 million users of the hookup service, whose slogan is “Life is short. Have an affair.” The da
Multiple banks say they are seeing evidence that Home Depot stores may be the source of a massive new batch of stolen credit and debit cards that went on sale this morning in the cybercrime underground. Home Depot says that it is working with banks and law enforcement agencies to investigate reports of suspicious activity. Contacted by this reporter about information shared from several financial
Imagine discovering a secret language spoken only online by a knowledgeable and learned few. Over a period of weeks, as you begin to tease out the meaning of this curious tongue and ponder its purpose, the language appears to shift in subtle but fantastic ways, remaking itself daily before your eyes. And just when you are poised to share your findings with the rest of the world, the entire thing v
The series I’ve written about ATM skimmers, gas pump skimmers and other related fraud devices have become by far the most-read posts on this blog. I put this gallery together to showcase the entire series, and to give others a handy place to reference all of these stories in one place. Click the headline or the image associated with each blurb for the full story. Jan. 15, 2010: Would You Have Spot
‘Operation Tovar’ Targets ‘Gameover’ ZeuS Botnet, CryptoLocker Scourge The U.S. Justice Department is expected to announce today an international law enforcement operation to seize control over the Gameover ZeuS botnet, a sprawling network of hacked Microsoft Windows computers that currently infects an estimated 500,000 to 1 million compromised systems globally. Experts say PCs infected with Gameo
The anonymous developers responsible for building and maintaining the free whole-disk encryption suite TrueCrypt apparently threw in the towel this week, shuttering the TrueCrypt site and warning users that the product is no longer secure now that Microsoft has ended support for Windows XP. Sometime in the last 24 hours, truecrypt.org began forwarding visitors to the program’s home page on sourcef
Last weekend, Target finally disclosed at least one cause of the massive data breach that exposed personal and financial information on more than 110 million customers: Malicious software that infected point-of-sale systems at Target checkout counters. Today’s post includes new information about the malware apparently used in the attack, according to two sources with knowledge of the matter. The s
Last week, the world got the first glimpses of a man Russian authorities have accused of being “Paunch,” a computer crime kingpin whose “Blackhole” crimeware package has fueled an explosion of cybercrime over the past several years. So far, few details about the 27-year-old defendant have been released, save for some pictures of a portly lad and a list of his alleged transgressions. Today’s post f
On any given day, nation-states and criminal hackers have access to an entire arsenal of zero-day vulnerabilities — undocumented and unpatched software flaws that can be used to silently slip past most organizations’ digital defenses, new research suggests. That sobering conclusion comes amid mounting evidence that thieves and cyberspies are ramping up spending to acquire and stockpile these dig
An intrusion at online dating service Cupid Media earlier this year exposed more than 42 million consumer records, including names, email addresses, unencrypted passwords and birthdays, according to information obtained by KrebsOnSecurity. The data stolen from Southport, Australia-based niche dating service Cupid Media was found on the same server where hackers had amassed tens of millions of reco
Forum software maker vBulletin is urging users to change their passwords following a recent breach of its networks. The attackers who claimed responsibility for the intrusion say they broke in using a zero-day flaw that is now being sold in several places online, but vBulletin maintains it is not aware of any zero-day attacks against current versions of its product. On Thursday, Nov. 14, this publ
The recent data breach at Adobe that exposed user account information and prompted a flurry of password reset emails impacted at least 38 million users, the company now says. It also appears that the already massive source code leak at Adobe is broadening to include the company’s Photoshop family of graphical design products. In a breach first announced on this blog Oct. 3, 2013, Adobe said hacker
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