Category: Mail / Communication / Groupware

04.04.2020

https://theintercept.com/2020/04/03/zooms-encryption-is-not-suited-for-secrets-and-has-surprising-links-to-china-researchers-discover/ hm…. let me think where one has seen this before: TELEGRAM! Zoom’s service is “not suited for secrets” “The researchers also found that Zoom protects video and audio content using a home-grown encryption scheme, that there is a vulnerability […]

can you trust PDF attachments/files in 2019?
06.07.2019

Pwn2Own 2020: opening a pdf can be enough to compromise system! https://youtu.be/u1udr7j9MQA?t=359 thank you ccc you are doing a lovely work – make this planet more interesting by creativity and more informed about security 🙂 keep it up 🙂 https://cdn.media.ccc.de/events/gpn/gpn19/h264-hd/gpn19-45-eng-BADPDF_-_Stealing_Windows_Credentials_via_PDF_Files_hd.mp4 […]

Howto Wie man in Firefox und Thunderbird Neue und Alte Deutsche Rechtschreibprüfung aktiviert und Wörterbuch installiert
08.10.2018

Firefox: einfach auf die Links klicken, dann auf “Add” to Firefox… und nochmal mit “OK” bestätigen. Neue Rechtschreibung: https://addons.mozilla.org/en-US/firefox/addon/german-dictionary/ Alte Rechtschreibung: https://addons.mozilla.org/en-US/firefox/addon/german-dictionary-de_de-for-sp/ … jetzt kann man(n)/Frau auf jeden beliebigen Text eines Formulares R-Click und … sich nie wieder vertippen X-D […]

12.01.2018

When you reserve a new domain – and the registrar asks you for your (personal?) mail to be published in the whois database. You better give it a mail address designated for spam. I just received a spam letter at […]

06.08.2017

the mail system is a very broken and corrupted system. sending-addresses can be forged – spam from all over the world is flooding the mailboxes – viruses get attached… nobody trusts attachments anymore. it’s a completely newly C++ developed mailserver […]

31.07.2017

sending a mail with fake “from:” to existing.com telnet existing.com 25 Trying 78.46.249.71… Connected to existing.com. Escape character is ‘^]’. 220 existing.com ESMTP Exim 4.84_2 Mon, 31 Jul 2017 11:41:29 +0200 EHLO SMTP.example.net 250-existing.com Hello hsi-kbw-5-158-158-169.hsi19.kabel-badenwuerttemberg.de [5.158.158.169] 250-SIZE 52428800 250-8BITMIME […]

Free Web Video Conferencing with firefox
25.07.2017

install firefox app and test it for free here: https://appr.tc/ When Browsers start to talk to each other – Open Source HTML5 based Web Video Audio Conferencing WebCam ScreenSharing – Collaboration over internet WebRTC (“Web Real-Time Communication“) enables applications such […]

top10 most used mail servers – segfault exim4
10.06.2017

a hacked e-mail account is a catastrophe – look at Hillary. telnet dwaves.de 25; # a simple telnet tells you that this server is running Trying 78.46.249.71… Connected to dwaves.de. Escape character is ‘^]’. 220 dwaves.de ESMTP Exim 4.XX_X Tue, […]