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06 Oct 2021
Preparing for and Responding to Cyber Security Incidents
The Australian Cyber Security Centre (ACSC) is responsible for monitoring and responding to cyber threats targeting Australian interests. The ACSC can help organisations respond to cyber security incidents. Reporting cyber security incidents ensures that the ACSC can provide timely assistance.
Windows Event Logging and Forwarding
A common theme identified by the Australian Cyber Security Centre (ACSC) while performing investigations is that organisations have insufficient visibility of activity occurring on their workstations and servers. Good visibility of what is happening in an organisation’s environment is essential for conducting an effective investigation. It also aids incident response efforts by providing critical insights into the events relating to a cyber security incident and reduces the overall cost of responding to them.
Implementing Multi-Factor Authentication
Multi-factor authentication is one of the most effective controls an organisation can implement to prevent an adversary from gaining access to a device or network and accessing sensitive information. When implemented correctly, multi-factor authentication can make it significantly more difficult for an adversary to steal legitimate credentials to facilitate further malicious activities on a network. Due to its effectiveness, multi-factor authentication is one of the Essential Eight from the Strategies to Mitigate Cyber Security Incidents.
Securing Content Management Systems
Security vulnerabilities within content management systems (CMS) installed on web servers of organisations are often exploited by adversaries. Once a CMS has been compromised, the web server can be used as infrastructure to facilitate targeted intrusion attempts.
Domain Name System Security for Domain Resolvers
This publication provides information on Domain Name System (DNS) security for recursive resolution servers, as well as mitigation strategies to reduce the risk of DNS resolver subversion or compromise. Organisations should implement the mitigation strategies in this publication to improve the security of their DNS infrastructure.
Bring Your Own Device for Executives
Bring Your Own Device (BYOD) scenarios enable organisations to take advantage of new technologies faster. It also has the potential to reduce hardware costs and improve organisational productivity and flexibility. However, BYOD also introduces new risks to an organisation’s business and the security of its information, which need to be carefully considered before implementation.
Cyber Supply Chain Risk Management
All organisations should consider cyber supply chain risk management. If a supplier, manufacturer, distributor or retailer (i.e. businesses that constitute a cyber supply chain) are involved in products or services used by an organisation, there will be a cyber supply chain risk originating from those businesses. Likewise, an organisation will transfer any cyber supply chain risk they hold to their customers.
How to Combat Fake Emails
Organisations can reduce the likelihood of their domains being used to support fake emails by implementing Sender Policy Framework (SPF) and Domain-based Message Authentication, Reporting and Conformance (DMARC) records in their Domain Name System (DNS) configuration. Using DMARC with DomainKeys Identified Mail (DKIM) to sign emails provides further safety against fake emails. Likewise, organisations can better protect their users against fake emails by ensuring their email systems use and apply SPF, DKIM and DMARC policies on inbound email.
Risk Management of Enterprise Mobility Including Bring Your Own Device
This publication has been developed to provide senior business representatives with a list of enterprise mobility considerations. These include business cases, regulatory obligations and legislation, available budget and personnel resources, and risk tolerance. Additionally, risk management controls are provided for cyber security practitioners.
Defending Against the Malicious Use of the Tor Network
Blocking traffic from the Tor network will prevent adversaries from using the Tor network to easily conduct anonymous reconnaissance and exploitation of systems and typically has minimal, if any, impact on legitimate users. This publication provides guidance on the prevention and detection of traffic from the Tor network.
Questions to ask Managed Service Providers
This publication provides simple yet practical questions to ask managed service providers regarding the cyber security of their systems and the services they provide.
Using Virtual Private Networks
Virtual Private Network (VPN) connections can be an effective means of providing remote access to a network; however, VPN connections can be abused by an adversary to gain access to a network without relying on malware and covert communication channels. This publication identifies security controls that should be considered when implementing VPN connections.
Security Configuration Guide – Apple iOS 14 Devices
The ACSC has developed this guide to assist Australian’s to understand the risks of deploying iOS 14 and the security requirements that need to be met to allow iOS 14 to handle sensitive or classified data.
Detecting Socially Engineered Messages
Socially engineered messages present a significant threat to individuals and organisations due to their ability to assist an adversary with compromising accounts, devices, systems or sensitive information. This publication offers guidance on identifying socially engineered messages delivered by email, SMS, instant messaging or other direct messaging services offered by social media applications.
Fundamentals of Cross Domain Solutions
This guidance introduces technical and non-technical audiences to cross domain security principles for securely connecting security domains. It explains the purpose of a Cross Domain Solution (CDS) and promotes a data-centric approach to a CDS system implementation based on architectural principles and risk management. This guidance also covers a broad range of fundamental concepts relating to a CDS, which should be accessible to readers who have some familiarity with the field of cyber security. Organisations with complex information sharing requirements are encouraged to refer to this guidance in the planning, analysis, design and implementation of CDS systems.
Implementing Application Control
Application control is one of the most effective mitigation strategies in ensuring the security of systems. As such, application control forms part of the Essential Eight from the Strategies to Mitigate Cyber Security Incidents. This publication provides guidance on what application control is, what application control is not, and how to implement application control.
Hardening Linux Workstations and Servers
This publication has been developed to assist organisations in understanding how to harden Linux workstations and servers, including by applying the Essential Eight from the Australian Cyber Security Centre (ACSC)’s Strategies to Mitigate Cyber Security Incidents.
An Examination of the Redaction Functionality of Adobe Acrobat Pro DC 2017
This publication provides guidance on the efficacy of redaction facilities within Adobe Acrobat Pro DC 2017 and is intended for information technology and information security professionals within organisations looking to redact sensitive or personal information from PDF documents before releasing them into the public domain or to other third parties.
02 Oct 2020
Ransomware in Australia
The Australian Signals Directorate’s (ASD) Australian Cyber Security Centre (ACSC) has observed an increase in the number of ransomware incidents affecting Australian organisations and individuals.
10 Sep 2020
ASD Cyber Skills Framework
The ASD Cyber Skills Framework defines the roles, capabilities and skills that are essential to ASD’s cyber missions. The ASD Cyber Skills Framework enables targeted recruitment of cyber specialists, provides a development pathway for current and future cyber staff, and aligns skills, knowledge and attributes with national and international industry standards.
01 Feb 2017
Strategies to Mitigate Cyber Security Incidents
The Australian Cyber Security Centre (ACSC) has developed prioritised mitigation strategies to help cyber security professionals in all organisations mitigate cyber security incidents caused by various cyber threats. This guidance addresses targeted cyber intrusions (i.e. those executed by advanced persistent threats such as foreign intelligence services), ransomware and external adversaries with destructive intent, malicious insiders, ‘business email compromise’, and industrial control systems.
Strategies to Mitigate Cyber Security Incidents – Mitigation Details
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