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Are You Trading Securely? Insights into the (In)Security of Mobile Trading Apps

By Alejandro Hernández (@nitr0usmx)The days of open shouting on the trading floors of the NYSE, NASDAQ, and other stock exchanges around the globe are gone. With the advent of electronic trading platforms and networks, the exchange of financial securities now is easier and faster than ever; but this comes with inherent risks.From the beginning, bad act
Publish At:2017-09-27 01:35 | Read:5810 | Comments:0 | Tags:Alejandro Hernandez electronic trading hack etrade hack fina

Brain Waves Technologies: Security in Mind? I Don't Think So

By Alejandro Hernández @nitr0usmxINTRODUCTIONJust a decadeago, electroencephalography (EEG) was limited to the inner rooms of hospitals,purely for medical purposes. Nowadays, relatively cheap consumer devices capableof measuring brain wave activity are in the hands of curious kids, researchers,artists, creators, and hackers. A few of the applications of thi
Publish At:2016-11-19 20:15 | Read:7446 | Comments:0 | Tags:Alejandro Hernandez brain brain waves EEG electroencephalogr

Five Reasons Why You Should Go To BruCON

By AlejandroHernández (@nitr0usmx)BruCON is one of the most important security conferences inEurope. Held each October, the ‘Bru’ in ‘BruCON’refers to Brussels, the capital of Belgium, where it all started. Nowadays,it’s held in the beautiful city of Ghent, just 55 mins from its origin. I hadthe chance to attend this year, and
Publish At:2015-10-16 18:25 | Read:3323 | Comments:0 | Tags:Alejandro Hernandez brucon conference cybersecurity hacking

The Beauty of Old-school Backdoors

By AlejandroHernández (@nitr0usmx)Currently, voodoo advancedrootkit techniques exist for persistence after you’ve got a shell during a pen test.Moreover, there are some bugdoorsimplemented on purpose by vendors, but that’s a different story. Beautifultechniques and code are available these days, but, do you remember that subtlecode you used to u
Publish At:2015-09-08 16:35 | Read:5024 | Comments:0 | Tags:Alejandro Hernandez backdoorhiding backdoors hacking old sch

ELF Parsing Bugs by Example with Melkor Fuzzer

By Alejandro Hernandez @nitr0usmx(Extract from white paper at http://www.ioactive.com/pdfs/IOActive_ELF_Parsing_with_Melkor.pdf )Too often the development community continues to blindly trust the metadata in Executable and Linking Format (ELF) files. In this paper, Alejandro Hernández walks you through the testing process for seven applications an
Publish At:2014-11-06 13:05 | Read:5071 | Comments:0 | Tags:Alejandro Hernandez crash ELF file format fuzzing GCC gdb Me

A Short Tale About executable_stack in elf_read_implies_exec() in the Linux Kernel

by Alejandro Hernández @nitr0usmx This is a short andbasic analysis I did when I was uncertain about code execution in the datamemory segment. Later on, I describe what’s happening in the kernel side as wellas what seems to be a small logic bug.I’m not a kernelhacker/developer/ninja; I’m just a Linux user trying to figure out the reas
Publish At:2014-08-12 01:40 | Read:8754 | Comments:0 | Tags:Alejandro Hernandez asm code ELF ioactive kernel linux nitr0

Glass Reflections in Pictures + OSINT = More Accurate Location

By Alejandro Hernández - @nitr0usmxDisclaimer: The aim of this article is to help people to be more careful when taking pictures through windows because they might reveal their location inadvertently. The technique presented here might be used for many different purposes, such as to track down the location of the bad guys, to simply know in which hotel is t
Publish At:2014-08-12 01:40 | Read:5562 | Comments:0 | Tags:Alejandro Hernandez cybersecurity geolocation glass intel io

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