DefZero

Category: Hacking & Security

  • Archive: Issues with BLE in IOT devices

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    I really wanted to see what was going on under the hood, so to speak, when a new device ( IOT) is turned on and it is magically detected by the mobile (IOS/Android) app for the initial configuration. Just for fun, I started sniffing the Bluetooth communication during the initial connection and it was quite…

  • Archive: Why emails are not safe for file transfer

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    Almost all the organizations use emails to transfer their confidential files. When we talk about email based file transfer, there are risks involved. In security we usually mention the phrase, “points of compromise”. These points of compromise are where an attack can occur and if successful, can cause serious damage. The following graphic illustrates different…

  • Archive: Xc0re Black List

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    For a while now we noticed that there have been many attacks on our website. We think that it is time to post the IP addresses in the form of an IP Black list. This might help other organizations, ban the IP addresses, before the cyber criminals can attack. The following list comprises of the…

  • Archive: How to keep yourself safe on the internet, during the Corona crisis

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    Corona pandemic, code name: Covid-19 caused by the virus SARS-CoV-2 is this century’s first pandemic, and hopefully the last, has caused problems in almost every industry. There has been a paradigm shift on a massive scale. As the governments, shutdown their countries in order to fight with the crisis, all the organizations are requested by…

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