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New Cache Side Channel Attack Can De-Anonymize Targeted Online Users

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Cache Side Channel Attack

A group of academics from the New Jersey Institute of Technology (NJIT) has warned of a novel technique that could be used to defeat anonymity protections and identify a unique website visitor.

“An attacker who has complete or partial control over a website can learn whether a specific target (i.e., a unique individual) is browsing the website,” the researchers said. “The attacker knows this target only through a public identifier, such as an email address or a Twitter handle.”

The cache-based targeted de-anonymization attack is a cross-site leak that involves the adversary leveraging a service such as Google Drive, Dropbox, or YouTube to privately share a resource (e.g., image, video, or a YouTube playlist) with the target, followed by embedding the shared resource into the attack website.

This can be achieved by, say, privately sharing the resource with the target using the victim’s email address or the appropriate username associated with the service and then inserting the leaky resource using an <iframe> HTML tag.

In the next step, the attacker tricks the victim into visiting the malicious website and clicking on the aforementioned content, causing the shared resource to be loaded as a pop-under window (as opposed to a pop-up) or a browser tab — a method that’s been used by advertisers to sneakily load ads.

This exploit page, as it’s rendered by the target’s browser, is used to determine if the visitor can access the shared resource, successful access indicating that the visitor is indeed the intended target.

The attack, in a nutshell, aims to unmask the users of a website under the attacker’s control by connecting the list of accounts tied to those individuals with their social media accounts or email addresses through a piece of shared content.

In a hypothetical scenario, a bad actor could share a video hosted on Google Drive with a target’s email address, and follow it up by inserting this video in the lure website. Thus when visitors land on the portal, a successful loading of the video could be used as a yardstick to infer if their victim is one among them.

anonymity

The attacks, which are practical to exploit across desktop and mobile systems with multiple CPU microarchitectures and different web browsers, are made possible by means of a cache-based side channel that’s used to glean if the shared resource has been loaded and therefore distinguish between targeted and non-targeted users.

Put differently, the idea is to observe the subtle timing differences that arise when the shared resource is being accessed by the two sets of users, which, in turn, occurs due to differences in the time it takes to return an appropriate response from the web server depending on the user’s authorization status.

The attacks also take into account a second set of differences on the client-side that happens when the web browser renders the relevant content or error page based on the response received.

“There are two main causes for differences in the observed side channel leakages between targeted and non-targeted users – a server-side timing difference and a client-side rendering difference,” the researchers said.

Cache Side Channel Attack

While most popular platforms such as those from Google, Facebook, Instagram, LinkedIn, Twitter, and TikTok were found susceptible, one notable service that’s immune to the attack is Apple iCloud.

It’s worth pointing out the de-anonymization method banks on the prerequisite that the targeted user is already logged in to the service. As mitigations, the researchers have released a browser extension called Leakuidator+ that’s available for Chrome, Firefox, and Tor browsers.

To counter the timing and rendering side channels, website owners are recommended to design web servers to return their responses in constant time, irrespective of whether the user is provisioned to access the shared resource, and make their error pages as similar as possible to the content pages to minimize the attacker-observable differences.

“As an example, if an authorized user was going to be shown a video, the error page for the non-targeted user should also be made to show a video,” the researchers said, adding websites should also be made to require user interaction before rendering content.

“Knowing the precise identity of the person who is currently visiting a website can be the starting point for a range of nefarious targeted activities that can be executed by the operator of that website.”

The findings arrive weeks after researchers from the University of Hamburg, Germany, demonstrated that mobile devices leak identifying information such as passwords and past holiday locations via Wi-Fi probe requests.

In a related development, MIT researchers last month revealed the root cause behind a website fingerprinting attack as not due to signals generated by cache contention (aka a cache-based side channel) but rather due to system interrupts, while showing that interrupt-based side channels can be used to mount a powerful website fingerprinting attack.

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Is DuckDuckGo Safe? Your Comprehensive Privacy Guide

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Is DuckDuckGo Safe? Your Comprehensive Privacy Guide

Explore the safety and privacy features of DuckDuckGo with this comprehensive guide. Learn how DuckDuckGo protects your online activities and keeps your information secure. Discover why DuckDuckGo is a trustworthy option for privacy-conscious users.

Introduction

In an age where online privacy is paramount, users are constantly seeking secure and private alternatives to traditional search engines. DuckDuckGo, a privacy-focused search engine, has gained significant attention for its commitment to user confidentiality. This article delves deep into the question: “Is DuckDuckGo safe?” We’ll explore the features that make DuckDuckGo a reliable choice for safeguarding your online activities.

Is DuckDuckGo Safe?

DuckDuckGo is a secure and private search engine that emphasizes protecting users’ personal information and search history. It employs several features to ensure your online activities remain confidential and shielded from prying eyes.

Privacy Protection Mechanisms

DuckDuckGo employs a range of privacy protection mechanisms to keep your information safe:

  • No Tracking: Unlike mainstream search engines, DuckDuckGo does not track your search queries, ensuring that your search history remains private.
  • Anonymous Searches: DuckDuckGo does not associate your searches with your IP address or create user profiles, guaranteeing anonymous searches.
  • Secure Connection: The search engine enforces HTTPS encryption, adding an extra layer of security to your online interactions.
  • Minimal Data Retention: DuckDuckGo retains minimal data related to your searches, and the data that is retained is not personally identifiable.

Search Result Quality

Despite its strong emphasis on privacy, DuckDuck-Go provides high-quality search results using its unique search algorithm. The search engine utilizes aggregated data from various sources, including Bing and Wikipedia, to deliver relevant results without compromising your privacy.

How Does DuckDuck-Go Ensure Safety?

DuckDuck-Go implements several measures to ensure safety while using its services:

  • Smarter Encryption: DuckDuck-Go uses Smarter Encryption to establish a secure connection between your device and its servers, reducing the chances of data interception.
  • Privacy Browser Extension: The privacy browser extension provided by DuckDuck-Go blocks third-party trackers, enhances encryption, and enforces secure connections, creating a safer browsing experience.
  • Instant Answers: DuckDuck-Go’s Instant Answers feature provides direct answers to your queries, reducing the need to click on potentially unsafe links.

FAQs About DuckDuck-Go’s Safety

Can I trust DuckDuck-Go with my search queries?

Absolutely. DuckDuck-Go’s no-tracking policy and emphasis on privacy ensure that your search queries are not stored or tied to your identity.

Is DuckDuck-Go’s search algorithm effective despite not tracking users?

Yes, DuckDuck-Go’s search algorithm aggregates data from various sources to provide relevant search results without compromising user privacy.

Can I use DuckDuck-Go as my default search engine?

Certainly. DuckDuck-Go offers browser extensions and mobile apps that make it easy to set it as your default search engine.

How does DuckDuck-Go generate revenue if it doesn’t track users?

DuckDuck-Go generates revenue through advertising that is not based on user data. Instead, ads are contextually relevant to the search terms, ensuring privacy.

Is my personal information safe with DuckDuck-Go’s browser extension?

Yes, DuckDuck-Go’s browser extension enhances your online security by blocking trackers and encrypting connections, ensuring your personal information remains safe.

Can I use DuckDuck-Go on mobile devices?

Absolutely. DuckDuck-Go provides mobile apps for various platforms, allowing you to enjoy its privacy-focused search on your mobile devices.

Conclusion

In a digital landscape where privacy is a growing concern, DuckDuckGo stands out as a beacon of trust and security. Its commitment to privacy, no-tracking policy, and robust security mechanisms make it a reliable choice for those seeking a safer and more private online search experience. With DuckDuck-Go, you can explore the web with confidence, knowing that your personal information remains protected.

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The Significance of Proper Support in Sportswear for Exercise

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The Significance of Proper Support in Sportswear for Exercise

When purchasing exercise clothing, the aspect of support is often overlooked. Sportswear companies tend to prioritise features such as moisture-wicking materials and convenient pockets. However, we believe that support is a crucial aspect of dressing for workouts, as it ensures both comfort and optimal performance. Support can be seen as the intersection of sportswear and shapewear. Therefore, it is essential to understand the significance of appropriate support during physical activity and know where to find it.

The Shapewear Crossover

Supportive sportswear primarily functions through gentle compression. It maintains stability and keeps your body secure while you engage in physical activity. Common characteristics between Standard shapewear and sports bras can be found. Both utilise specialised, flexible materials to offer body support. They are also designed with minimal seams to prevent discomfort and ensure discreteness. Additionally, the emphasis on comfort remains consistent for both types of apparel. As a result, similar principles apply when it comes to providing optimal body support.

What kind of support should your athletic apparel provide?

When engaging in physical activities, it is important to wear clothing that provides stability, regardless of the intensity. Whether you are running a marathon or practising yoga, your Sports bras and briefs should not cause any discomfort or irritation. In this article, we will explore the areas of the body that require support from sportswear.

Breast support

A sports bra is essential for any physical activity, regardless of intensity. It serves as the ultimate supportive sportswear, providing both comfort and stability. By minimizing excessive movement, it helps prevent discomfort in the breast and back areas. With the multitude of options available, finding the perfect sports bra style depends on factors such as your breast size, the type of sport you engage in, and your preferred method of wearing and removing it.

Back support

If you’ve ever dealt with back pain, you understand the significance of a well-fitting bra. A sports bra that offers adequate support helps minimize the strain on your muscles and ligaments, preventing discomfort and soreness in your back. Additionally, it alleviates upper back and shoulder pain commonly associated with the weight of larger breasts.

Tummy support

Those who possess knowledge on the matter may opt to provide support to their waist and stomach by wearing sports underwear or leggings. Both options are equally effective. It is advisable to seek out high-waisted compression garments with a wide waistband, as they contribute to the stability and strength of your torso, which is vital in preventing injuries. By promoting stability and offering support to the abdomen, these garments also aid in preventing chafing and can boost your confidence, allowing you to elevate your performance.

In recent years we’ve definitely seen a shift in the fashion industry, with influencers and celebrities placing pressure on the high street to make plus-size fashion more accessible for all. Nowadays, Sportswear is highly demanding as demonstrated by plus size UK influencers.

The advantages of wearing supportive sportswear

The support provided by activewear has a tangible influence on your sports performance and how your body reacts to exercise. It’s no wonder that many women opt for activewear as their everyday clothing choice.

Posture

The incorporation of compression panels in clothing such as high-waisted underwear or leggings can enhance your posture. Maintaining a strong and stable posture is crucial during physical activities to prevent injuries. Whether you engage in sports like tennis, running, or weightlifting, having adequate support around your torso can significantly benefit you.

Comfort

The crucial aspect of effective sportswear is its ability to provide comfort. It is important to ensure that your sportswear does not constrict your breathing. To find comfortable and supportive garments, opt for those with extended panels made of lightweight fabrics that wick away moisture. These fabrics are not only lightweight but also provide support to your body while minimising the risk of chafing. Additionally, an increasing number of garments are being designed without hems, allowing them to sit smoothly against your skin without causing any discomfort.

Performance

Compression is commonly utilised in shapewear to create a desired figure, but in the context of sportswear, it can actually improve your performance. Whether it’s in the form of socks or leggings, compression technology promotes better blood circulation to targeted areas like your legs. This increased blood flow intensifies your exercise routine and contributes to faster recovery.

The finest athletic attire should not only prioritise fashion and technology. Its primary function is to provide stability to your core, enabling you to engage in activities comfortably and confidently. This underscores the significance of support, which is crucial not just during physical exertion but also in day-to-day life.

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Exploring Alternative Sentencing Options: Understanding the Potential for No Jail Time in 2nd Offense DWI Cases in Texas:

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Exploring Alternative Sentencing Options: Understanding the Potential for No Jail Time in 2nd Offense DWI Cases in Texas:

While Texas has some of the most drunk drivers in the country, the state also has some of the strictest DWI penalties. Despite how common a Texas DWI and 2nd DWI can be (with over 30% of DWI convicts reoffending), a 2nd DWI conviction will land you at least 72 hours in county jail and possibly even a year. Although many will agree that the punishment fits the crime, a 2nd DWI charge can be a telltale sign of alcohol addiction, and can often require rehabilitation that a jail sentence cannot offer. Luckily enough, there are several ways you can avoid a conviction for a 2nd DWI in Texas to receive no jail time and focus on your rehabilitation.

An Expert DWI Attorney:

Since mandatory jail time can only be avoided by avoiding conviction, a skilled DWI attorney is crucial to any option you explore. A 2nd DWI charge requires the same amount of evidence as a 1st DWI charge, and can often be defended with the same tactics. Depending on the circumstances of your case, a DWI attorney may be able to scrutinize a field sobriety test, the administration of a breathalyzer test, or the constitutionality of a traffic stop. Always inquire about the potential for a successful defense before you set your mind on other options, as dismissal or acquittal is the only way to circumvent all penalties of a 2nd DWI in Texas no jail time. If an expert attorney determines that your case won’t fare well at trial they can petition for probation or a DWI court to proceed over your case, or negotiate a plea for you.

DWI Court:

Many of Texas’ major cities offer a DWI court program as a way to avoid jail for DWI 2nd offenders or defendants who show signs of alcoholism. DWI court is similar to probation but heavily emphasizes rehabilitation. A program will typically involve common aspects of community supervision, routine attendance at outpatient programs, and meetings between you, a judge, a probation officer, and a counselor. If you do not abide by the court’s rules or mandatory programs your case can go back to court and you will likely go to jail. A DWI court program is at least a year, but the length and regimen can be augmented depending on a defendant’s progress. Upon a judge “graduating” you from DWI court your sentence will be fulfilled. DWI court not only allows you to avoid jail time but is known to reduce DWI recidivism rates by as much as 12%.

Plea Bargain:

With Texas’ criminal justice system being notoriously arduous, nearly 30% of all DWIs are reduced to lesser charges to avoid the hassle of a trial. In cases without aggravating factors such as an enhanced blood alcohol concentration, a child passenger, or an accident, a 2nd DWI charge can be bargained down to a minimum sentence or reduced charges. To be considered for a plea deal, a defendant will usually have to show personal growth and remorse. This is typically done by issuing a statement to the court, installing an ignition interlock in your vehicle, or attending DWI education courses or outpatient. If you plea to a minimum sentence you will likely still face 72 hours in jail and probation. While it’s uncommon for a 2nd DWI plea deal in Texas to receive no jail time, this is not impossible if your charges are reduced to reckless driving or obstruction of a highway.

Don’t Drink and Drive:

72 hours in jail is considered the mandatory minimum sentence for a 2nd DWI conviction and those facing charges are unlikely to see no jail time. The only guaranteed way to avoid jail is to avoid drinking and driving. With a drunk driving fatality occurring every 8.5 hours in Texas and over 10% of Texans reporting involvement in a drunk driving crash sometime in their lives, don’t fall under the impression that you are immune to the consequences of a DWI. Always make sure that you have a designated driver or extra money for an Uber when you go out drinking, it can save someone’s life and protect your future.

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