Category: Digital Forensics
Security Not a Top Priority for Many Small Businesses
I recently found an article that outlined a study about cyber security and small businesses. In the study, by Newtek Business Services’ Small Business Authority, it was discovered that “just 27 percent of small business owners have had an outside party test their computer systems to ensure that they are hacker-proof…” I found this to be a relatively shocking number, but one that is believable in today’s tough economy. It would seem that most small organizations would be watching every penny and often during that type of number crunching, Information Technology and I.T. Security budgets are often the first to
get cut. Security has always been one of those items that, to most organizations, has been a hard sell to upper management, particularly if that organization has never experienced any sort of security or data breach. Security budgets are often looked upon as, “Why are we spending so much money on something that may happen.” Until an organization is hit, it is often a tough sell for many to pass a decent security budget.
This same article also highlights a recent study by PwC that “found 43 percent of global companies think they have an effective information security strategy in place and are proactively executing their plans.” Another interesting finding in this report was the number of respondents that have “confidence” in their plans. “Seventy-two percent of the more than 9,600 security executives…report confidence in the effectiveness of their organization’s information security activities… (a number that) has declined markedly since 2006.” This figure, in my opinion, shows that even the large organizations, as much as they may feel prepared, really are not too confident in their security preparations.
Maybe their lack of confidence comes from the large number of data and security breaches that are reported every day. In addition to these breaches are numbers that are behind them. Another study from the Ponemon Institute, sponsored by Symantec, found “that the average cost of a data breach increased by seven percent to $7.2million in 2010-with the most expensive data breach jumping 15 percent over the previous high to a whopping $35.3 million.” In addition, the study calculated that “the average data breach cost per individual compromised record is $214.” This is a staggering figure when you look at many of the breaches that have been reported, in most there are hundreds of thousand s of records lost each time. Multiply these numbers by $214 and the fines and associated fees per breach will climb quickly.
With these numbers in mind, this goes back to my original point, that only 27 percent of small business owners value security enough to have an outside company come in a test their security. Taking into account that many small organizations may not have the capital available for such security or “penetration” tests, it also begs the question, “Will they have enough capital to cover the fines and other fees associated with a data breach ($7.2million in 2010)?”
Is your Security Policy up to date?
It seems that every day we see a story in the news about an organization that has been affected by a data breach. And it also seems that these organizations may not have been maintaining a secure infrastructure with which to protect their data. Although this may seem illogical, this is often the case. An organization may have the stoutest and layered defense in place, but a well targeted attack, or “spear
phishing” attack can bypass these controls quickly and easily. Since a task as simple as opening a malicious file in an email can compromise the data of an entire organization, this highlights the importance of an organization’s overall information security policy, specifically any administrative controls that may be in place.
These spear phishing attacks will often target specific individuals within an organization with emails that appear to be legitimate. If these email messages look authentic enough, they will often entice the recipient to open a malicious attachment, disguised as a legitimate document or spreadsheet. Once this is done, the attacker may potentially gain access to the recipient’s computer or beyond.
In this day and age, ensuring that your employees are knowledgeable and up to date on relevant security policies and procedures is critical to the reducing the risk of targeted attacks within your organization. This should begin with basic messaging to your employees that outlines your security policy, including acceptable use criteria and specifically outlining what to watch for in a potentially malicious email. In addition, annual or semi-annual testing or certification will also help to ensure that your employees are made aware of your security policies and have confirmed this knowledge.
This may seem like an overly simple and meaningless task, but it’s one that is often overlooked. While logical controls, like your firewalls, routers and IDS/ISP devices, will hopefully mitigate the majority of questionable messages and traffic patterns into your organization, knowledgeable and vigilant employees are often an important last line of defense in protecting your organization’s information assets.
Data Breach Disclosure Laws Are Now Long Overdue
Ah, Europe – why do its citizens seem to have to wait forever for action to be taken on issues that seem obvious to everyone else? While they may take some solace from the overdue departure of Signore Silvio Berlusconi (although I’m sure they will miss his ‘unique’ brand of humour – what a card!) it seems they will have to wait longer than expected for the right to find out if their personal information has been compromised.
Earlier this month, the European Commission (EC) announced that it was delaying the release of a new version of its Data Protection Directive – originally scheduled for mid-November – until the end of January 2012. When released, the legislation will install a welcome ‘mandatory data breach disclosure’ ruling across both public and private sector organisations, requiring them to report any breaches to relevant regulatory bodies, such as the UK’s Information Commissioner’s Office (ICO), as well as inform affected individuals. The ruling is expected to have global implications, as the law is likely to also cover non-EU companies that store data on European citizens.
Laws enforcing mandatory data breach disclosure are now long overdue in Europe. Such legislation is already in place in the US, and our recent research shows that the majority of the UK public are dissatisfied with the minimal consequences UK organisations face when they jeopardise sensitive data. 83 percent of the 2,000 UK consumers we surveyed support compulsory data loss disclosure legislation and the delay means they’ll have to wait even longer before this governance is in place.
With an unprecedented number of high profile data breaches occurring in the past year, this will no doubt be a huge frustration to the UK public, who are more prepared than ever to take drastic action against organisations that lose data. Our survey found that 26 percent of respondents were adamant they would never have anything to do with organisations which had lost data as a result of cyber crime, a rise of nine percent when compared to similar LogRhythm research conducted in 2010.
Once mandatory data breach disclosure laws are enforced, organisations will find they need to develop a much deeper insight into the activity taking place across their networks. This is because they will be required to generate accurate notifications which will specifically identify who and what has been compromised. This has been a particular problem in the US, and many companies are forced into issuing blanket breach notifications, which may even overstate the severity of the incident, due to a lack of visibility into their IT systems.
Solving this problem depends on organisations making better use of the log data generated by IT equipment. Both investigating breaches after they occur and detecting them beforehand depend on systems that can automatically collect and analyse 100 percent of log data in real-time. Only this approach can provide the forensic insight required to truly understand how threats penetrate systems and compromise data. With data breach incidents reaching an all-time high this year, it is clear that traditional perimeter security solutions are an inadequate defence. Organisations now require the traceability provided by continuous log data analysis to identify anomalies, formulate damage limitation strategies and generate accurate breach notifications.
However, organisations should not wait for new legislation to obligate them into gaining a better understanding of the IT estate. The high proportion of the UK public in favour of mandatory notification tells us a lot about the lack of trust that exists when it comes to an organisation’s ability to defend against cyber attacks, and when asked if organisations are doing enough to secure customer data, 81 percent did not believe this was the case and that more needed to be done. Clearly it is best practice to be constantly aware of the smallest changes that occur across organisations’ IT systems, which will help to ensure major breaches do not occur in the first place.
Unfortunately online threats are becoming ever more sophisticated and harder to identify. If only IT systems wore undesirable activity as a badge of honour like Italy’s departing premier – it would certainly make the CIOs job a lot easier!
New Threats, New Acronyms: from APTs to AETs
Over the last few months, you’ve barely been able to open a newspaper without reading about the massive hacks affecting high target brands, such as RSA, Lockheed Martin and Mitsubishi Heavy Industries (to pick out just a few from a very long list). While differing in detail, these breaches have all been characterised as Advanced Persistent Threats (APTs), the acronym of the moment in the security industry.
Although they vary greatly in their tactics, APTs generally look for sophisticated ways to exploit vulnerabilities, often compromising multiple systems or processes in order to reach their ultimate goal. The ‘advanced’ comes from the fact that they require considerable planning and financing, and are typically undertaken by highly skilled cyber-criminals. They are ‘persistent’ because they repeatedly attempt to compromise multiple systems in order to obtain access to their intended victims, trying hundreds, thousands or even millions of combinations.
However, even though the APT is a relatively new concept, a new type of threat is now beginning to attract attention that is more complex still.
Attacks using Advanced Evasion Techniques (AETs) are in many ways the same as APTs but their modus operandi is to not to get detected at all, and they do this by reacting to the IT infrastructure, constantly morphing and masquerading in order to avoid identification. Basically, they are a lot sneakier.
AETs are used in particularly high stakes games. For example, the disruption caused by them could even (as with the case of the Stuxnet worm) threaten lives. Hackers employing these techniques are likely to belong to highly motivated outfits, backed by serious money and/or political clout.
While the emergence of even more sophisticated and serious cyber-threats makes for depressing reading, you can take consolation in the fact that an effective security management policy can defend against both types of threat.
These policies should include better staff training for all employees (case in point is the RSA breach, which was traced back to a malicious email sent to just four of the company’s employees), helping organisations to better identify and stop ‘doorknocking’ by unauthorised users. Education obviously needs to be coupled with the best possible perimeter defences.
However, far too many organisations think that training and perimeter solutions equal an adequate security policy. By taking this approach, and neglecting their internal systems, they are potentially exposing their soft underbellies.
The monitoring of log data generated across the whole organisation, in order to identify and instantly respond to suspicious activity, is a key layer in the defence against APTs and AETs. What’s more, this data can also be used to conduct post-event forensics, giving organisations the intelligence needed to ensure they are better prepared for the next attack… whether that attack is an APT, an AET, or whatever the acronym generator churns out next.
Gaining Visibility Through File Integrity Monitoring
The recent admission by Stanford University’s Hospital (http://www.nytimes.co /2011/09/09/us/09breach.html?ref=us) that 20,000 emergency room patient records were publicly disclosed is a great reminder of how important file activity monitoring is. The information considered most sensitive and dear to companies is often sitting on file servers. If you don’t have good visibility into who is accessing and copying files, you don’t stand much of a chance in identifying inappropriate use before it becomes a breach. In the event a breach does occur, how reliably and quickly can you ascertain when, how, and by whom? Auditing file access is certainly a good start but auditing systems can be configured incorrectly and/or compromised. For servers housing sensitive data, the best measure in gaining trusted visibility into file access is to deploy independent File Activity Monitoring technology.
LogRhythm wins "Innovator of the Year" from SC Magazine. "This is not your father's log manager."