Federal prosecutors extradited two suspected ransomware operators, including a man they said was responsible for an intrusion that infected as many as 1,500 organizations in a single stroke, making it one of the worst supply chain attacks ever.
Yaroslav Vasinskyi, 22, was arrested last August as he crossed from his native country of Ukraine into Poland. This week, he was extradited to the US to face charges that carry a maximum penalty of 115 years in prison. Vasinskyi arrived in Dallas, Texas, on March 3 and was arraigned on Wednesday.
First up: Sodinokibi/REvil
In an indictment, prosecutors said that Vasinskyi is responsible for the July 2, 2021, attack that first struck remote-management-software seller Kaseya and then caused its infrastructure to infect 800 to 1,500 organizations that relied on the Kaseya software. Sodinokibi/REvil, the ransomware group Vasinskyi allegedly worked for or partnered with, demanded $70 million for a universal decryptor that would restore all victims’ data.
The tactics, techniques, and procedures used in the Kaseya supply chain attack were impressive. The attack started by exploiting a zero-day vulnerability in Kaseya’s VSA remote management service, which the company says is used by 35,000 customers. The group stole a legitimate software-signing certificate and used it to digitally sign the malware. This allowed the group to suppress security warnings that would have otherwise appeared when the malware was being installed.
To add further stealth, the attackers used a technique called DLL side-loading, which places a spoofed malicious DLL file in a Windows’ WinSxS directory so that the operating system loads the spoof instead of the legitimate file. The hackers in the Kaseya campaign dropped an outdated file version that remained vulnerable to the side-loading of “msmpeng.exe,” which is the file for the Windows Defender executable.
Federal prosecutors allege that Vasinskyi caused the deployment of malicious Sodinokibi/REvil code throughout Kaseya’s software build system to further deploy REvil ransomware to endpoints on customer networks. Vasinskyi is charged with conspiracy to commit fraud and related activity in connection with computers, damage to protected computers, and conspiracy to commit money laundering.
Remember NetWalker?
On Thursday, US prosecutors reported a second ransomware-related extradition, this one against a Canadian man accused of participating in dozens of attacks pushing the NetWalker ransomware.
Sebastien Vachon-Desjardins, 34, of Gatineau, Quebec, Canada, was arrested in January 2021 on charges that he received more than $27 million in revenue generated by NetWalker. The Justice Department said the defendant has now been transferred to the US, and his case is being handled by the FBI’s field office in Tampa, Florida.
NetWalker was an advanced and prolific group that operated under a RaaS—short for “ransomware as a service”—model, meaning core members recruited affiliates to use the NetWalker malware to infect targets. The affiliates would then split any revenue generated with the organization. A blockchain analysis revealed that between March and July of 2020, the group extorted a total of $25 million. Victims included Trinity Metro, a transit agency in Texas that provides 8 million passenger trips annually, and the University of California, San Francisco, which ended up paying a $1.14 million ransom.
NetWalker was a human-operated operation, meaning operators often spent days, weeks, or even months establishing a foothold inside a targeted organization. In January 2021, authorities in Bulgaria seized a website on the darknet that NetWalker ransomware affiliates had used to communicate with victims. The seizure was part of a coordinated international crackdown on NetWalker.
Vachon-Desjardins is charged with conspiracy to commit computer fraud and wire fraud, intentional damage to a protected computer, and transmitting a demand in relation to damaging a protected computer. Blockchain analysis firm Chainalysis said transactions it tracked show that the Canadian man also helped push RaaS strains Sodinokibi, Suncrypt, and Ragnarlocker.
This week’s extraditions are part of a string of successes that law enforcement authorities have had in recent weeks. Last June, the FBI said it seized $2.3 million paid to the ransomware attackers who paralyzed the network of Colonial Pipeline a month earlier and touched off gasoline and jet fuel supply disruptions up and down the East Coast. The website for Darkside, the ransomware group behind the intrusion, also went down around the same time.
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Acer’s Nitro XV272 costs more than a lot of 1080p monitors, but the IPS, 165Hz screen provides above-average image quality and motion performance, and a full range of monitor-stand adjustments and a generous array of ports make it worth the cost.
Best Prices Today: Acer Nitro XV272
1080p resolution isn’t cutting-edge, but it remains the most popular resolution among modern PC displays. This is often because of budget: There are dozens of cheap 1080p monitors. But what happens when a 1080p monitor makes image quality a priority?
Acer XV272: The specs
The Acer Nitro XV272 (LVbmiiprx) is a 27-inch, 1080p monitor with an IPS panel and a 165Hz refresh rate. This puts it smack-dab in the most crowded segment of the monitor market. Here are the XV272’s most noteworthy specs.
Display size: 27-inch
Native resolution: 1920×1080
Panel type: IPS
Refresh rate: Up to 165Hz
Adaptive sync: AMD FreeSync Premium and G-Sync Compatible
Ports: 2x HDMI 2.0, 1x DisplayPort, 4x USB 3
Stand adjustment: Height, tilt, swivel, pivot
VESA mount: Yes, 100x100mm
Speakers: Yes
Price: $349 MSRP, around $279 typical
A few features help the Nitro XV272 stand out. It has a 165Hz refresh and is compatible with both AMD FreeSync and Nvidia G-Sync. It also has three video inputs, four USB ports, and a stand with numerous ergonomic adjustments. These features signal that the Nitro XV272, though not expensive, is a cut above entry-level 1080p monitors.
Acer Nitro XV272: Design
The “Nitro” name might sound exciting, but the XV272, like all such monitors from Acer, looks pretty plain. Acer’s Nitro sub-brand focuses on performance over design. Essentially all Nitro monitors use a simple, matte black housing paired with a skinny stand with round base. It’s dull but inoffensive.
Cable management could be better—you get just a clip on the base for routing cables.
Matt Smith / Foundry
The stand feels cheap when handled but offers plenty of ergonomic adjustment. This includes height, tilt, swivel, and even pivot. Swivel and pivot aren’t guaranteed at this price point, so it’s good to see them here. There’s also a 100x100mm VESA mount for attaching a third-party monitor arm or stand.
There is one problem with the stand: cable management. You won’t find a hole in the stand for routing cables. Instead, Acer uses a tiny clip on the base that does a terrible job of keeping cables bundled.
Acer XV272: Features and menu
Connectivity includes two HDMI 2.0 ports, plus one DisplayPort, and a total of four USB-A 3.0 ports for connecting wired peripherals. This makes the monitor a moderately useful USB hub, though it lacks more advanced features like USB-C with Power Delivery. Still, the Acer Nitro XV272 has more ports than most 1080p gaming monitors.
A nice selection of ports are located in the depression on the Nitro XV272’s backside.
Matt Smith / Foundry
The Nitro XV272’s menu system could be better. It looks basic, with simple icons and unattractive fonts, and doesn’t feel responsive while using the joystick to scroll through options. The joystick and select buttons are easy to use, but the power button is a bit too close to the select buttons. I accidentally turned off the monitor several times.
These issues hide a surprisingly robust slate of image-quality options. This includes precise gamma presets, several color temperature modes, and six-way adjustment of color saturation and hue. There’s also a few gaming-centric features such as a frames-per-second counter and built-in aim points. The monitor lacks a black equalizer setting for brightening dark areas, however, which might disappoint fans of competitive shooters.
The monitor includes a pair of two-watt speakers. They’re not great but well suited for podcasts, YouTube, or games with less impressive audio. You’ll want to put on a headset when sound quality matters.
Acer XV272: SDR image quality
The Acer Nitro XV272 is towards the high end of pricing for a 27-inch 1080p display. Gamers can snag a 1440p or 4K monitor for about the same price. Acer combats this with a vivid, accurate image.
SDR brightness comes in at about 250 nits. This is low but, as you’ll see when I discuss HDR, it’s not the monitor’s true maximum brightness. Acer appears to be limiting the monitor’s maximum potential in SDR mode. That said, the monitor is still bright enough for use in nearly all situations. It will only appear dim if used opposite a sunlit window.
Matt Smith / Foundry
The Nitro XV272’s modest contrast ratio is typical for a modern IPS gaming monitor without Mini-LED technology. Like its peers, the XV272 suffers from “IPS glow”—a hazy and blotchy appearance noticeable in dark scenes.
Color gamut is solid, covering the entire sRGB color space plus 88 percent of DCI-P3. The range of colors it can display is great for a mid-range gaming monitor and does provide an advantage over alternatives with a more narrow color space. The added color provides a vivid, saturated look that’s attractive in games.
As for color accuracy, the Nitro XV272 knocks it out of the park, with a default color accuracy more typical of a high-end professional monitor than a mid-range gaming monitor.
Acer doesn’t sell the XV272 as a professional display, and its meager 1080p resolution will take it out of contention for many, but creators who stick to 1080p resolution will find this monitor surprisingly capable when editing photos, video, and digital art.
Matt Smith / Foundry
The monitor had an ideal gamma curve of 2.2, which means content looks about as bright as was intended. Default color temperature came in at 6200K, which is slightly warmer and more reddish than the typical temperature of 6500K. As mentioned earlier, the monitor offers multiple gamma and color temperature settings, so there’s a lot of room to tweak the image if you want.
But you don’t need to—and that is the monitor’s greatest strength. The XV272’s decent contrast, accurate color, and lack of noticeable flaws makes for a fantastic out-of-box experience. The SDR image is lively and inviting.
Matt Smith / Foundry
There’s one obvious limitation: resolution. This is a 27-inch 1080p monitor, which translates to a meager pixel density of 81 pixels per inch. Fonts are poorly defined, videos lack sharpness, and games show distracting shimmering and pixelation. This isn’t a dealbreaker for me, but you should know what you’re getting into. A 1440p alternative will look much sharper.
Acer XV272: HDR performance
The Acer Nitro XV272 supports HDR and is VESA DisplayHDR 400 certified. HDR support is becoming common among gaming displays, but it still feels special at this price point. I measured a maximum HDR brightness of 450 nits, which is solid.
Though it supports HDR, the Nitro XV272 failed to automatically detect an HDR signal and turn on HDR mode. I had to select it manually. This is a minor annoyance but disappointing, as nearly all monitors I test have no problem detecting HDR automatically.
The Nitro XV272’s HDR performance is better than expected. It delivered performance that was superior to more expensive monitors, such as the Gigabyte M27Q X and Asus ProArt PA279CV, with better color gamut and accuracy in HDR.
Still, ultimately, this is a budget monitor that can’t do HDR justice. HDR content can deliver a bit more detail in bright areas but otherwise isn’t necessarily more colorful or rich than in SDR—it just looks slightly different.
Acer XV272: Motion performance
Acer’s Nitro XV272 has a maximum refresh rate of up to 165Hz. This delivers smooth, fluid motion in games and a quicker, more responsive feel when using the desktop. The monitor officially supports AMD FreeSync Premium and Nvidia G-Sync, so you don’t need to worry about whether the monitor will work with your particular video card.
Shoppers should remember this is a 1080p display, which is less demanding than 1440p or 4K resolution. Achieving a frame rate that fully uses the 165Hz refresh rate is possible in a wide range of titles. This is good news for gamers on a budget.
Motion clarity is good at the monitor’s default response-time setting. The monitor has an OverDrive mode, which can be activated when using several gaming-oriented image-quality presets. This can improve clarity but also causes overshoot, an issue where a pixel moves beyond the intended color, resulting in artifacts around high-contrast objects. Most owners should just leave OverDrive at the default setting of Normal.
Final thoughts
The Acer Nitro XV272 LVbmiiprx is a good monitor for gamers who want attractive image quality at a mid-range price. Resolution will be an obstacle for some, as it’s possible to buy a 1440p monitor on the same budget, but the XV272’s accurate image and great motion clarity makes up for the lack of sharpness.
The XV272 is also a good choice for content creators who want accurate color for less than $300, making it a well-rounded, budget-friendly choice for those who work from home and want one display for both productivity and gaming.
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While nothing beats a full-featured PDF editor like Adobe’s Acrobat Pro DC, sometimes you don’t need all the bells and whistles. When you just have to edit a few lines of text, add or reposition an image, or make some review notes, a free PDF editor may be the way to go.
Free PDF editors offer a few advantages over their paid partners. First and most obviously, they don’t cost anything. If you don’t work regularly with PDF files, a premium editor probably won’t be worth the investment and a free editor can get the job done on the occasions you need to make some quick changes to document. Second, free PDF editors generally work in your browser so, unlike paid PDF editors, there are no platform- or device-compatibility issues to worry about. (The exceptions are free trial versions of paid editors, which need to be downloaded to a device.) Finally, because free online PDF editors are used on-the-fly, they generally have much simpler, more-intuitive interfaces and tools than paid editors do.
Of course, you can’t expect a free product to have all the sophisticated features of a paid one. Most will let you edit PDF files by adding and modifying text and images and annotating with shapes, freehand drawings, and notes. Fonts and font sizes, colors, and shape options will almost assuredly be more limited than what you’d find in a paid editor, though. Free editors will also let you create PDFs and convert them to other file formats. This is probably all you need for occasional work with PDFs.
You may find features like form filling, e-signatures, and content redaction in some free editors. But capabilities like password protection and bates numbering are almost unheard of. Frankly, if you dive deep enough into PDFs to use any of these features, you’re probably better served by one of the desktop editors in our best paid PDF editors buying guide.
1. PDF Candy – Best free PDF editor overall
Pros
Many advanced features
OCR capability
Very easy to use
Cons
Lacks a single interface, which some users may not like
Free version limits you to one task per hour
PDF Candy is the rare free PDF editor that offers a lot of the features you’d typically have to pay for. We’re talking scanning, multiple file-conversion options, and OCR functionality. While the free version has access to the expansive toolset of the paid version, you’re limited to one PDF task per hour. For unfettered access, you need to shell out $6 month.
2. Apple Preview PDF editor – Best free PDF editor for Mac users
Pros
Full set of PDF markup tools
Supports form filling
PDFs can be protected with passwords, encryption, and permission controls
Cons
Limited native sharing options
Only available to Mac users
Mac users have an excellent PDF editor built right into their operating system. Although its ostensibly a photo viewer, macOS’s Preview app is rife with PDF-editing capabilities including tools for adding text and shapes, redacting content, making freehand drawings, inserting sticky notes, and capturing your signature using your trackpad, camera, or iPhone.
3. Sejda PDF editor – Most versatile free PDF editor
Pros
Online and desktop versions available
Performs dozens of PDF tasks
No frills interface is easy to use
Cons
There are daily usage limits without a subscription
Limited font options
Offered as both an online tool and a desktop editor, Sejda is capable of performing dozens of tasks including editing, form creation and filling, Bates stamping, file encryption, and more. If the daily usage limits are too restrictive for you, you can upgrade to the affordable paid version.
Content editing: As its name indicates, a PDF editor’s primary function is to enable you to edit a document. That includes the ability to add and modify text; insert, resize, and move images; and reorganize pages in the PDF. Most free PDF editors will let you perform these tasks, though they may impose daily limits on how many you can perform or how many documents you can edit.
Create, convert, and export PDFs: A common need for a PDF editor is to create PDF files from scanned hard copies or by converting digital documents. A good free PDF editor will be able to convert common file formats such as Word, JPG, and HTML to a PDF and preserve the original formatting. It should also be able to export PDFs into other editable formats such as Microsoft Word and PowerPoint, HTML, or plain text, maintaining the original files hyperlinks, images, and other elements.
Review and annotate: Most free PDF editors allow you to add comments and other annotations to PDF files during review. Typical annotation tools include sticky notes, shapes, and drawing markup options.
Signatures: Often all you need a PDF editor for is to sign a document. This used to be a premium feature only available on paid desktop editors, but more free PDF editors are allowing users to create and add electronic signatures to documents.
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