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forum.defcon.org

Title: Hacking the PLC via Its Engineering Software By: Kelly Jackson Higgins https://www.darkreading.com/author-bio.asp?author_id=322 S: ttps://www.darkreading.com D: 8/7/2020 at 04:45 PM URL1=[url=https://www.darkreading.com/vulnerabilities---threats/hacking-the-plc-via-its-engineering-software/d/d

community.watchguard.com

The WatchGuard User Community

privsec.dev

Mailcow is a fairly popular self-hosted mail server. If you use it, there are a few ways you can improve its security by following these steps. Postfix Configuration Consider disabling weak ciphers and TLS versions below 1.2 in data/conf/postfix/extra.cf: tls_high_cipherlist = ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256 tls_preempt_cipherlist = yes smtp_tls_protocols = !SSLv2, !SSLv3, !TLSv1, !TLSv1.1 smtp_tls_ciphers = high smtp_tls_mandatory_ciphers = high smtpd_tls_protocols = !SSLv2, !SSLv3, !TLSv1, !TLSv1.1 smtpd_tls_ciphers = high smtpd_tls_mandatory_ciphers = high NGINX Configuration These security configurations can be added/modified in data/conf/nginx/includes/site-defaults.

hackersonlineclub.com

According to a recent study, the MSP industry’s market value is projected to exceed USD$300 billion by 2027.

dirkjanm.io

This is the first post in a series on cross-forest Active Directory trusts. It will explain what exactly Forest trusts are and how they are protected with SID filtering. If you’re new to Active Directory trusts, I recommend you start by reading harmj0y’s in-depth guide about them. After reading his (excellent) post I had lots of questions about how this actually works under the hood and how trusts within the same AD forest compare with trusts between different forest. This series of blogs is both my journey and my documentation on how I researched this topic and how I understand it now. Get ready for a deep dive into trusts, Kerberos, golden tickets, mimikatz and impacket!

cyberengage.org

In the ever-evolving cat-and-mouse game of cyber defense and offense, one technique has proven especially resilient: Domain Generation Algorithms (DGAs). While not a brand-new tactic, DGAs are still actively used in modern malware campaigns to maintain command-and-control (C2) connections, avoid takedowns, and scale operations across thousands of infected machines.What is a DGA, and Why Do Malware Authors Use It?Think of a DGA as a recipe that allows malware to generate a list of domain names on

community.qualys.com

a community of security professionals discussing it security and compliance topics and collaborating with peers.

phishingtackle.com

Read article about Instagram Faces A New Phishing Attack Stealing 2FA Backup Codes. Discover the latest news & posts and get helpful insights about phishing from Phishing Tackle experts.

hackerrangers.com

In recent years, digital threats have become increasingly sophisticated, and a new type has recently been gaining traction: the toll scam.  For example,