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24 Nov 2021
Small Business Cyber Security Guide
This guide has been developed to help small businesses protect themselves from the most common cyber security incidents.
22 Oct 2021
Quick Response Codes in a COVID-19 Environment
Quick Response (QR) codes have increased in popularity in the COVID-19 environment, aiding contact tracing and business check-in efforts. This publication provides information for individuals and businesses to help protect against cyber threats when using QR codes.
06 Oct 2021
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.
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.
Implementing Network Segmentation and Segregation
This publication 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.
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.
Anatomy of a Cloud Assessment and Authorisation
The Anatomy of a Cloud Assessment and Authorisation is co-designed with industry to support the secure adoption of cloud services across government and industry.
Mitigating the Use of Stolen Credentials
This publication explains the risks posed by the use of stolen credentials and how they can be mitigated.
Cloud Computing Security Considerations
Cloud computing offers potential benefits including cost savings and improved business outcomes for organisations. However, there are a variety of information security risks that need to be carefully considered. Risks will vary depending on the sensitivity of the data to be stored or processed, and how the chosen cloud vendor (also referred to as a cloud service provider) has implemented their specific cloud services.
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).
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.
Microsoft Office Macro Security
Microsoft Office applications can execute macros to automate routine tasks. However, macros can contain malicious code resulting in unauthorised access to sensitive information as part of a targeted cyber intrusion. This publication has been developed to discuss approaches that can be applied by organisations to secure systems against malicious macros while balancing both their business and security requirements.
Protecting Against Business Email Compromise
Business email compromise is when criminals use email to abuse trust in business processes to scam organisations out of money or goods. Criminals can impersonate business representatives using similar names, domains and/or fraudulent logos as a legitimate organisation or by using compromised email accounts and pretending to be a trusted co-worker.
What Executives Should Know About Cyber Security
This publication discusses high-level topics that executives should know about cyber security within their organisations.
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.
Creating Strong Passphrases
Multi-factor authentication (a combination of something that you know, something that you have or something that you are) is one of the most effective ways to protect against unauthorised access to valuable information and accounts. However, in cases where multi-factor authentication is not available, a strong passphrase can often be the only barrier between adversaries and your valuable information and accounts. Passphrases are most effective when they are long, complex, unpredictable and unique.
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.
Identifying Cyber Supply Chain Risks
This guidance has been developed to assist organisations in identifying risks associated with their use of suppliers, manufacturers, distributors and retailers (i.e. businesses that constitute their cyber supply chain).
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.
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.
Implementing Certificates, TLS, HTTPS and Opportunistic TLS
Transport Layer Security (TLS) is a widely used encryption protocol which enables parties to communicate securely over the internet. Through the use of certificates and Public Key Infrastructure (PKI), parties can identify each other through a trusted intermediary and establish encrypted tunnels for the secure transfer of information.
Preparing for and Responding to Denial-of-Service Attacks
Although organisations cannot avoid being targeted by denial-of-service attacks, there are a number of measures that organisations can implement to prepare for and potentially reduce the impact if targeted. Preparing for denial-of-service attacks before they occur is by far the best strategy, it is very difficult to respond once they begin and efforts at this stage are unlikely to be effective.
Essential Eight Maturity Model FAQ
The Essential Eight Maturity Model provides advice on how to implement the Essential Eight to mitigate different levels of adversary tradecraft and targeting.
Cloud Computing Security for Cloud Service Providers
This publication is designed to assist assessors validating the security posture of a cloud service in order to provide organisations with independent assurance of security claims made by Cloud Service Providers (CSPs). This publication can also assist CSPs to offer secure cloud services.
Mitigating Drive-by Downloads
Adversaries are increasingly using drive‐by download techniques to deliver malicious software that compromises computers. This publication explains how drive‐by downloads operate and how compromise from these techniques can be mitigated.
Mergers, Acquisitions and Machinery of Government Changes
This publication provides guidance on strategies that organisations can apply during mergers, acquisitions and Machinery of Government changes.
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.
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.
Security Tips for Personal Devices
There are a lot of things to think about when it comes to the use of personal devices (e.g. smartphones, tablets, computers and laptops). For example, compromises of personal devices and the information they store can have significant productivity, financial and emotional impacts. This publication has been written to provide security tips to secure personal devices and protect your information.
IoT Code of Practice: Guidance for Manufacturers
Internet of Things (IoT) devices need to have effective cyber security provisions to defend against potential threats.
Assessing Security Vulnerabilities and Applying Patches
Applying patches to applications and operating systems 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.
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.
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.
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.
Securing PowerShell in the Enterprise
This publication 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.
Introduction to Cross Domain Solutions
This publication 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.
Marketing and Filtering Email Service Providers
This publication provides high level guidance on how to use email service providers (ESPs) in particular deployment scenarios. The considerations and controls described in that publication also apply to ESPs sending email on your behalf.
Travelling Overseas with Electronic Devices
This publication provides guidance on strategies that individuals can take to secure the use of electronic devices when travelling overseas.
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.
Security Tips for Online Gaming
There are many things to think about when it comes to the use of personal devices (e.g. smartphones, tablets, computers and laptops) or gaming devices (e.g. Nintendo, PlayStation and Xbox consoles) for a safe and secure online gaming experience. Following the security tips in this publication can assist you to prevent the compromise of your devices and information, thereby avoiding significant productivity, financial and emotional impacts.
Essential Eight to ISM Mapping
This publication provides a mapping between the Essential Eight Maturity Model and the security controls within the Information Security Manual (ISM). This mapping represents the minimum security controls organisations must implement to meet the intent of the Essential Eight.
Industrial Control Systems Remote Access Protocol
External parties may need to connect remotely to critical infrastructure control networks. This is to allow manufacturers of equipment the ability to maintain the equipment when a fault is experienced that cannot be fixed in the required timeframe. Such access to external parties will only occur in extraordinary circumstances, and will only be given at critical times where access is required to maintain the quality of everyday life in Australia.
Domain Name System Security for Domain Owners
This publication provides information on Domain Name System (DNS) security for domain owners, as well as mitigation strategies to reduce the risk of misuse of domains and associated resources. Organisations are recommended to implement the mitigation strategies in this publication to improve the security of their DNS infrastructure.
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.
Security Configuration Guide – Samsung Galaxy S10, S20 and Note 20 Devices
The ACSC has developed this guide to assist Australian’s to understand the risks when deploying Samsung Galaxy S10 and S20 devices.
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.
Hardening Microsoft Windows 10 version 21H1 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 publication provides recommendations on hardening workstations using Enterprise and Education editions of Microsoft Windows 10 version 21H1.
Cloud Computing Security for Tenants
This publication is designed to assist an organisation’s cyber security team, cloud architects and business representatives to jointly perform a risk assessment and use cloud services securely.
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.
Web Conferencing Security
Web conferencing solutions (also commonly referred to as online collaboration tools) often provide audio/video conferencing, real-time chat, desktop sharing and file transfer capabilities. As we increasingly use web conferencing to keep in touch while working from home, it is important to ensure that this is done securely without introducing unnecessary privacy, security and legal risks. This publication provides guidance on both how to select a web conferencing solution and how to use it securely.
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