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26 Jun 2020
Introduction to Cross Domain Solutions
This document introduces technical and non-technical audiences to the concept of a Cross Domain Solution (CDS), a type of security capability that is used to connect discrete systems within separate security domains in an assured manner.
Malicious Email Mitigation Strategies
Socially engineered emails containing malicious attachments and embedded links are routinely used in targeted cyber intrusions against organisations. This document has been developed to provide mitigation strategies for the security risks posed by these malicious emails.
Privileged access allows administrators to perform their duties such as establishing and making changes to key servers, networking devices, user workstations and user accounts. Privileged access or credentials are often seen as the ‘keys to the kingdom’ as they allow the bearers to have access and control over many different assets within a network. This publication provides guidance on how to implement secure administration techniques.
Mitigating the Use of Stolen Credentials
This document explains the risks posed by the use of stolen credentials and how they can be mitigated.
End of Support for Microsoft Windows Server 2008 and Windows Server 2008 R2
On 14 January 2020, Microsoft ended support for Microsoft Windows Server 2008 and Windows Server 2008 R2. As such, organisations no longer receive patches for security vulnerabilities identified in these products. Subsequently, adversaries may use these unpatched security vulnerabilities to target Microsoft Windows Server 2008 and Windows Server 2008 R2 servers.
Essential Eight to ISM Mapping
This document provides a mapping between Maturity Level 3 of the Essential Eight Maturity Model and the security controls within the Australian Government Information Security Manual (ISM). This mapping represents the minimum security controls organisations must implement to meet the intent of the Essential Eight.
How to Manage Your Security When Engaging a Managed Service Provider
The compromise of several Managed Service Providers’ (MSPs) was reported in 2017. In response, the Australian Cyber Security Centre (ACSC) provided organisations with the information they needed to protect themselves and others from this threat.
Implementing Network Segmentation and Segregation
This document intends to assist staff responsible for an organisation’s network architecture and design to increase the security posture of their networks by applying network segmentation and segregation strategies.
Securing PowerShell in the Enterprise
This document describes a maturity framework for PowerShell in a way that balances the security and business requirements of organisations. This maturity framework will enable organisations to take incremental steps towards securing PowerShell across their environment.
Using Remote Desktop Clients
Remote access solutions are increasingly being used to access organisations’ systems. One common method of enabling remote access is to use a remote desktop client. This document provides guidance on security risks associated with the use of remote desktop clients.
Assessing Security Vulnerabilities and Applying Patches
Applying patches to operating systems, applications and devices is critical to ensuring the security of systems. As such, patching forms part of the Essential Eight from the Strategies to Mitigate Cyber Security Incidents.
Hardening Microsoft Office 2013
Workstations are often targeted by adversaries using malicious websites, emails or removable media in an attempt to extract sensitive information. Hardening applications on workstations is an important part of reducing this risk.
Managed Service Providers: How to Manage Risk to Customer Networks
The compromise of several Managed Service Providers (MSPs) was reported in 2017. In response, the Australian Cyber Security Center (ACSC) provided organisations with the information they needed to protect themselves and others from this threat.
Mitigating Java-based Intrusions
Java applications are widely deployed by organisations. As such, exploiting security vulnerabilities in the Java platform is particularly attractive to adversaries seeking unauthorised access to organisations’ networks.
Cyber Security for Contractors
This document has been developed to assist contractors with appropriately securing Australian Government information on their systems.
Mitigating Drive-by Downloads
Adversaries are increasingly using drive‐by download techniques to deliver malicious software that compromises computers. This document explains how drive‐by downloads operate and how compromise from these techniques can be mitigated.
Hardening Microsoft Office 365 ProPlus, Office 2019 and Office 2016
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.
Restricting Administrative Privileges
This publication provides guidance on restricting the use of administrative privileges. Restricting the use of administrative privileges is one of the eight essential mitigation strategies from the Strategies to Mitigate Cyber Security Incidents.
What Executives Should Know About Cyber Security
This publication discusses high-level topics that executives should know about cyber security within their organisations.
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.
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.
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.
Data Spill Management Guide
A data spill is the accidental or deliberate exposure of information into an uncontrolled or unauthorised environment, or to persons without a need-to-know. A data spill is sometimes referred to as information disclosure or a data leak. Data spills are considered cyber security incidents and should be reported to the Australian Cyber Security Centre (ACSC).
Hardening Microsoft Windows 10 version 1909 Workstations
Workstations are often targeted by an adversary using malicious websites, emails or removable media in an attempt to extract sensitive information. Hardening workstations is an important part of reducing this risk. This document provides recommendations on hardening workstations using Enterprise and Education editions of Microsoft Windows 10 version 1909. Before implementing recommendations in this document, thorough testing should be undertaken to ensure the potential for unintended negative impacts on business processes is reduced as much as possible.
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 document identifies security controls that should be considered when implementing VPN connections.
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.
22 May 2020
COVID-19 – Remote access to Operational Technology Environments
This cyber security advice is for critical infrastructure providers who are deploying business continuity plans for Operational Technology Environments (OTE)/Industrial Control Systems (ICS) during the COVID-19 pandemic.
06 Apr 2020
COVID-19 Protecting Your Small Business
This guide has been developed to help small and micro businesses adapt to working during the COVID-19 pandemic. It will help businesses with simple and actionable advice in order to both identify common and emerging cyber threats and develop resilient business practices to protect themselves.
31 Oct 2019
Quick Wins for your End of Support
Every software product has a lifecycle. Knowing key dates in a program’s lifecycle can help you make informed decisions about the products your small business relies on every day. This guide helps small businesses understand what end of support is, why it is important to be prepared and when to update, upgrade or make other changes.
09 Oct 2019
Step-by-Step Guide – Turning on Automatic Updates (For Windows 10)
This step-by-step guide shows you how to turn on automatic updates if you use Microsoft Windows 10.
Quick Wins for your Portable Devices
Mobile technology is an essential part of modern business. While these devices may be small, the cyber threats when transporting them outside of the office are huge. This guide helps small businesses understand what is a portable device, why it is important to manage their use and how to keep the data on portable devices secure.
29 Apr 2019
Easy steps to secure your online information
The Australian Cyber Security Centre (ACSC) has developed an Easy Steps Guide to help Australians protect themselves from cyber criminals. Lottery and grant scams, identity theft, investment scams, hacking, phishing, dating and romance scams, online abuse and sextortion are just some of the threats people face.
01 Jul 2018
Protecting Industrial Control Systems
Industrial control systems are essential to our daily life. They control the water we drink, the electricity we rely on and the transport that moves us all. It is critical that cyber threats to industrial control systems are understood and mitigated appropriately to ensure essential services continue to provide for everyone.
05 Feb 2017
Strategies to Mitigate Cyber Security Incidents – Mitigation Details
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.
01 Feb 2017
Strategies to Mitigate Cyber Security Incidents
Australian Cyber Security Hotline
1300 CYBER1(1300 292 371)