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الوسم: data protection

  • Four Questions to Test Your Personal Data Security Skills

    Four Questions to Test Your Personal Data Security Skills

    Most individuals claim they value privacy, but their daily actions often don’t align with those concerns. Researchers have now created a straightforward four-question quiz to assess how well people understand and safeguard their personal information.

    This discrepancy—where people say they care about privacy but act differently—is sometimes called the “privacy paradox.” For instance, someone might be worried about companies collecting their data but still click “accept all” on cookie banners without reading the details.

    A key part of the issue is a lack of knowledge. Websites and apps frequently feature complicated menus and cleverly designed prompts that nudge users into sharing more information than they might intend.

    And privacy isn’t just an online concern. People regularly share sensitive details when filling out paper forms, speaking on the phone, or engaging with businesses and government agencies.

    Researchers from Julius-Maximilians-Universität Würzburg and Germany’s Federal Commissioner for Data Protection and Freedom of Information (BfDI) aimed to find a simple way to evaluate individuals’ capabilities in these situations.

    Their answer is a brief survey consisting of only four questions. The simplicity allows for easy inclusion in large-scale public surveys, unlike previous, more complicated assessments.

    These questions explore four key areas: whether people understand what personal data organizations gather and how it’s used, if they know methods to protect their data, if they’re aware of their legal privacy rights, and if they possess factual knowledge about current privacy issues and risks.

    Participants rate their knowledge in each category from one to five. A score of one indicates limited awareness, while five suggests they can explain the topic confidently to others.

    Adding up these scores gives a total between four and 20. Scores from four to 10 signify below-average understanding, whereas scores between 16 and 20 indicate a high level of competence in data protection.

    To verify the quiz’s effectiveness, the researchers administered it in a survey with 1,666 people, focusing on Germany’s electronic health record system.

    Results showed that individuals with higher scores also tended to demonstrate better factual knowledge about privacy concerns related to digital health records, validating the quiz as a useful measurement tool.

    The study revealed notable differences among groups. People with university degrees scored higher than those without, men outperformed women on average, and age played a significant role: individuals over 60 showed less proficiency in data protection than younger adults aged 18 to 59.

    These gaps could be due to several factors. Older adults may feel less comfortable navigating digital tools or implementing privacy measures, while those with less education might have fewer opportunities or resources to learn these skills.

    The aim isn’t merely to identify who knows more about privacy but to help policymakers, educators, and organizations target support where it’s needed most.

    This could lead to improved privacy education and the development of more user-friendly digital services with stronger default privacy protections.

    As daily life increasingly involves sharing personal information, understanding how data is collected, used, and kept secure becomes essential for confidently engaging in the digital world.

  • What if Fingerprints Could Be Reset Like Passwords?

    What if Fingerprints Could Be Reset Like Passwords?

    Fingerprints, facial recognition, and iris scans are now widely used for unlocking smartphones, accessing bank accounts, and entering secure facilities. Many individuals consider biometrics safer and more convenient than traditional passwords, as they eliminate the need to remember login details. However, biometric data has a significant drawback: it cannot be easily changed once compromised. Unlike passwords, which can be reset, you can’t replace your fingerprints or iris patterns if they are stolen. When biometric information is compromised, the security risks can persist indefinitely.

    Researchers have recently developed a groundbreaking approach that could boost the security of biometric systems. Their study, published in the International Journal of Computational Vision and Robotics, introduces the concept of “revocable” or “cancellable” biometrics. Essentially, this means that biometric identifiers could be reset or replaced in a manner similar to changing a password.

    The key innovation involves not storing a person’s raw biometric data directly. Instead, the system converts the original fingerprint or other biometric information into a protected, transformed version from the start. This modified data still allows for accurate identification but conceals the original details. If this protected data is ever stolen, it can be invalidated and replaced with a new version, preventing permanent exposure. This approach offers an added layer of security, reducing the long-term risks associated with data breaches.

    To achieve this, the researchers combined several sophisticated computational techniques. The process begins by extracting unique features from a fingerprint, such as distinct ridge patterns and minutiae points. These features are then mathematically transformed into a different, hard-to-reverse format. Additional encryption and compression steps further scramble the data, making it increasingly difficult for attackers to reconstruct the original fingerprint.

    Testing on standard fingerprint datasets showed promising results. The new system matched the recognition accuracy of existing biometric systems, but with enhanced resistance against certain cyber threats. Notably, it proved more resilient against record multiplicity attacks, where hackers attempt to piece together multiple stolen biometric templates to recover the original data.

    As biometric authentication becomes more integrated into everyday applications, safeguarding personal data is more critical than ever. Technologies that allow biometric identifiers to be reset and replaced—rather than permanently compromised—could address one of the most pressing security issues in digital identity management. Moving forward, losing control over biometric data might no longer be a lifelong concern, as users could have the option to reset and renew their biometric IDs just like changing a password.

  • How To Secure Your Signal Texts on iPhone After FBI Crackdown

    How To Secure Your Signal Texts on iPhone After FBI Crackdown

    Signal has long been regarded as one of the most secure messaging applications available. It employs end-to-end encryption, minimizes data collection, and includes features like disappearing messages to ensure the privacy of your conversations. For many users, it remains the default choice when privacy truly matters. However, recent developments highlight that some aspects of your communication may still be vulnerable. Fortunately, there are straightforward ways to protect yourself.

    How the FBI Retrieved Signal Messages from an iPhone

    According to a report from 404 Media, the FBI recently succeeded in recovering deleted Signal messages from an iPhone. Importantly, this process didn’t involve cracking Signal’s encryption. Instead, investigators accessed data stored by the iOS system itself. When message previews are enabled, iOS temporarily stores parts of incoming messages to display in notifications. This cached data can persist outside the app, even after messages are deleted within Signal or if the app is removed entirely.

    To visualize this, imagine a screenshot of the notification settings on an iPhone with iOS 16, showcasing options related to message previews. In such cases, parts of your conversation might be stored temporarily to display in notifications. If those notifications are cached, authorities can extract message snippets from this stored data, revealing parts of your conversations beyond Signal’s encrypted environment.

    It’s important to clarify that this isn’t a flaw in Signal’s encryption—messages remain secure while in transit and within the app. The vulnerability stems from how iOS manages notification previews, which can create secondary copies of message content outside of Signal’s secure domain.

    How to Prevent Your iPhone from Exposing Signal Messages

    You have two primary options to close this security gap: modify your iPhone’s notifications settings or adjust Signal’s own settings.

    Disabling Message Previews in iOS
    To prevent iOS from storing message previews, navigate to:

    • Settings > Notifications > Show Previews
    • Set this to “When Unlocked” or “Never.”

    Choosing “When Unlocked” means message content only appears when your phone is unlocked, while “Never” disables previews altogether, providing the highest level of privacy.

    Adjusting Signal Settings
    Alternatively, within Signal, you can specify the notification content shown, reducing the risk that message snippets are stored externally. Open Signal, tap on your profile icon, then go to:

    • Settings > Notifications
    • Under “Notification Content,” select either “Name Only” or “No Name or Content.”

    This ensures message details do not appear in previews, even if notifications are enabled.

    These measures work well if you use multiple privacy-focused messaging apps, as they don’t require adjusting each app individually. But if you want to keep previews enabled for other apps, customizing Signal’s notification settings offers a more tailored privacy approach.

    What This Reveals About Privacy

    For most users, this isn’t an everyday concern. Extracting cached notification data generally requires physical access to the device, making it a limited vulnerability rather than a widespread risk. Nonetheless, it sheds light on how privacy features operate in real-world situations. Using a secure app is crucial, yet operating system settings and minor convenience features can inadvertently undermine that security.

    Signal remains one of the most secure messaging platforms, but it’s wise to review your device’s privacy settings periodically. Taking a few moments to adjust notification preferences can significantly enhance your privacy and prevent unintended data exposure.