DSD: Four mitigation strategies prevent 85% of intrusions

Shocking new advice: Patch apps, patch operating systems, limit access

Research by Australia's Defence Signals Directorate (DSD) reinforces what information security specialists have been saying forever. Most intrusions could be prevented by paying attention to the basics.

At least 85 percent of targeted intrusions would be defeated by these clever new strategies:

• Patch applications such as PDF readers, Microsoft Office, Java, Flash Player and web browsers.
• Patch operating system vulnerabilities.
• Minimise the number of users with administrative privileges.
• Use application whitelisting to help prevent malicious software and other unapproved programs from running.

These are the first items in DSD's Top 35 Mitigation Strategies, based on analysis of reported incidents and problems discovered during vulnerability assessments and penetration testing in 2010.

"Implementing the top four strategies can be achieved gradually, starting with computers used by the employees most likely to be targeted by intrusions, and eventually extending them to all users," the agency wrote. "Once this is achieved, organisations can selectively implement additional mitigation strategies based on the risk to their information."

DSD is responsible for the information security of Australian government military and civilian agencies.

 

Contact Stilgherrian at stil@stilgherrian.com, or follow him on Twitter at @stilgherrian.
 
 

Tags: application whitelisting, Australia's Defence Signals Directorate (DSD), government, mitigation strategies, network intrusion, News, security

Comments

1

Anonymous

Thu 03/11/2011 - 01:07

"Clever and new"?? Have these guys been living under a rock?

2

Troy

Mon 06/02/2012 - 21:40

GREAT! FFS!

I'VE been saying this for years? Can I get an award for every year that I'VE been saying this?

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Security Awareness Tip
Software security company www.clearswift.com gives some advice this holiday season to make sure employees don’t end up on Santa’s naughty list!


At a fundamental business level, social media is a useful additional tool for communicating and collaborating with customers, colleagues and new business prospects. From an HR point of view, the social web is not only useful for recruitment but also as a knowledge network. At an employee level, social media is changing the way we work: Employees increasingly expect to be able to access personal technology and services in the workplace. As the lines between work and home life blur, staff are looking for greater flexibility in their roles; working from home is an increasing trend, but so too is ‘home-ing from work’, where staff expect to be able to perform personal tasks at work.

But social media brings risk and reward to business in equal measure. Information security is a key concern: Many organisations view social media channels as yet another route along which sensitive data can escape from the business, whether accidentally or maliciously. On top of this, senior management may be concerned about the amount of time employees spend on social networks.

This cultural shift raises new questions about trust in the workplace, the balance of power in employer / employee relationship and levels of control over people and content.


Organisations using content and web security technology can manage the way their staff use email and the internet without having to resort to a default position of mistrust. With a whopping third of ANZ employers completely blocking social media access at work, there’s a real danger of throwing the benefits of collaboration out with the risks.


It doesn’t have to be that way.

Trust breeds responsibility: People underestimate the amount of company time they spend on personal browsing. Allow staff to view their own web usage and foster more responsible behaviour without undermining trust.


Know limits: Set clear limits on personal surfing and communicate them to users. Alert them when they are approaching their limit. Help your people to play by the rules.


Share the load: Spread responsibility for usage reporting among managers and department heads so everyone gets to see how their usage impacts on the rest of the organisation. This also gives managers greater control and visibility into usage.


Need to know: Yes, you need reports and visibility. What you don’t need is employee data becoming common knowledge. Access control means reporting can be adjusted on a need-to-know basis.


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