What's a Botnet, and How Do They Work?

We mention the term "botnet" from time to time, but what exactly is a botnet? How does it work? Is it self-aware? Can botnets be taken down? We look into this, and discuss the week's security news.

• Fire & Ice: Making and Breaking macOS Firewalls
• 'Synthetic Click' attack re-emerges in macOS High Sierra at Defcon
• Fax Machines Are Still Everywhere, and Wildly Insecure
• Intego exclusive: HP Leaves Mac Users Vulnerable to Fax Hacks
• HP Ink Printers Remote Code Execution
• Denial-of-service attack (Wikipedia)
• Steganography (Wikipedia)
• Homeland, Episode 9 recap (contains spoilers)
• iWorm Botnet Uses Reddit and Command and Control Center
• Flashback Botnet is Adrift
• Why the Flashback Botnet is a Threat
• Viruses, Worms and Spyware--Yikes! A Look at Malware Terminology
• Intego Security Memo: Trojan Horse OSX/Koobface.A Affects Mac OS X Mac – Koobface Variant Spreads via Facebook, Twitter and More
• Should You Worry About People Hacking Toilets?

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