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A brief history of cryptography: Sending secret messages throughout time

IBM Big Data Hub

Most cryptosystems begin with an unencrypted message known as plaintext, which is then encrypted into an indecipherable code known as ciphertext using one or more encryption keys. 650 BC: Ancient Spartans used an early transposition cipher to scramble the order of the letters in their military communications.

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GUEST ESSAY – Notable events in hacking history that helped transform cybersecurity assessment

The Last Watchdog

military officials hired data analysts to crack the Japanese secret code known as JN-25. military and the analysts who worked to gather intelligence and relay these critical, decoded messages to prevent further attack. Today companies face a challenge of identifying and deflecting encrypted traffic leveraged by malicious actors.

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SideWinder carried out over 1,000 attacks since April 2020

Security Affairs

SideWinder has been active since at least 2012, the group main targeted Police, Military, Maritime, and the Naval forces of Central Asian countries. The URLs used for C2 communications for these domains are split into two parts: The Installer module contains the first part of the URL which is the C2 server domain name in encrypted form.

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Russia-linked APT28 compromised Ubiquiti EdgeRouters to facilitate cyber operations

Security Affairs

“As early as 2022, APT28 actors had utilized compromised EdgeRouters to facilitate covert cyber operations against governments, militaries, and organizations around the world.” and foreign governments and military, security, and corporate organizations. ” reads the joint report. ” continues the report.

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Phishing attacks using the topic “Azovstal” targets entities in Ukraine

Security Affairs

The analysis of encryption techniques employed in the attack allowed the government experts to associate the campaign with the cybercrime group Trickbot. The alert published by the Ukraine CERT-UA includes Indicators of Compromise (IoCs) for this campaign and recommendations. To nominate, please visit:? Pierluigi Paganini.

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NB65 group targets Russia with a modified version of Conti’s ransomware

Security Affairs

F**k the Russian Military. NB65 extension to the encrypted file’s names. Clearly, the group also modified the encryption process to avoid Russian victims using a decryptor provided by the Conti gang that announced its support to Russia. We suggest you check your machines. They're struggling. F**k Vladimir Putin.

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Maze Ransomware operators hacked the Xerox Corporation

Security Affairs

Xerox Corporation is the last victim of the Maze ransomware operators, hackers have encrypted its files and threaten of releasing them. Maze ransomware operators have breached the systems of the Xerox Corporation and stolen files before encrypting them. Blog Link) [link] — Cyble (@AuCyble) June 30, 2020.