Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

In computing, an audit log is a record of an event. An event is any significant action that impacts the hardware or software of a computer – anything from a mouse click to a program error. Besides documenting which resources were accessed and what for, an audit file system will also include the source and destination addresses, the timestamp, and the user ID information.

With the rapid expansion in both scale and variety of technologies in modern business systems, there comes a need to further secure those technologies to prevent nefarious actors from causing havoc. The expanding data landscape creates a much larger attack surface for bad actors to exploit, and as a result leaves many organizations at risk from theft, fraud or other undesirable behavior.

Event correlation tools are a fundamental instrument in your toolbox to detect threats from all sources across your organization in real time. A wise use of the right event correlation techniques through log management and analysis is the cornerstone of any reliable security information and event management (SIEM) strategy – a strategy that focuses on prevention rather than reaction.

Email is the top initial attack vector, with phishing campaigns responsible for many damaging cyber attacks, including ransomware. Being able to search Mimecast email security logs in CrowdStrike Falcon® LogScale (formerly known as Humio), alongside other log sources such as endpoint, network and authentication data helps cybersecurity teams detect and respond to cyber attacks.

This post covers how to ingest data into CrowdStrike Falcon® LogScale from your MacOS platform using Python. This guide is great for setting up a one-node proof of concept (POC) so you can take advantage of LogScale’s free trial. Before you can write your ingest client, you must prepare a good foundation. That means preparing your MacOS instance via the following steps: Ready? Let’s get started.

Ransomware is the type of malware that locks you out of your own computer until you pay a ransom. This digital extortion is one of the most serious security threats facing the Internet today. Ransomware not only impacts unsuspecting Internet users, but business organizations, government institutions and even critical services such as utility, healthcare and emergency facilities. Ransomware has been around for many years.

Cryptography is used to secure data at rest, stored in servers, and in motion, transmitted over the network. Cryptography involves mathematical operations that convert the original plaintext into an unintelligible ciphertext (encryption) and the reverse process, converting ciphertext to plaintext (decryption). Cryptographic algorithms apply these algorithms in combination of keys, which serve as a secret knowledge to complete the algorithmic operations correctly.

Threat hunting and detection are two major prevention strategies in modern cybersecurity systems. Both strategies help identify potential threats to the organizations — though they take different approaches to threat identification. This article explains the difference between threat hunting and detection, so you know what to focus on for your organization’s cybersecurity strategy.

Here at Graylog, we have recently had an increase in conversations with security teams from leading companies. We want to share our key findings with the Graylog community. The good thing is that cybercriminals use a methodical approach when planning an attack. By understanding their process and knowing your network, you will be better prepared and able to stay one step ahead.