Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Analytics //

Security Monitoring

5/3/2013
11:06 AM
Wendy Nather
Wendy Nather
Commentary
50%
50%

La Vie En ROSI

Return on security investment may be slightly less mythical than you think

With very few exceptions, there is really nothing in security that gives you a return on investment. Unless you're selling them, security technologies almost never make you any money -- what they're there for is loss avoidance. Now, you may be able to achieve that loss avoidance by spending a lot of money, or by spending a little money; if you manage the latter, then yes, you have parlayed a cost savings into another cost savings. But that's not the same as investing some money and watching it grow in value.

If that were the end of the story, though, this blog post would be pretty short. So let's look at what material advantages there might be in security monitoring, besides just (hopefully) catching attackers before they do too much (more) damage.

As I've written before, good security monitoring can tell you more about your organization than just how many nmap probes your firewall has blocked. (By the way, I don't consider that number to be at all interesting. Basing your metrics on how many packets your firewall has automatically blocked and calling them "security events" is like counting how many "water events" your roof has handled during the last rainstorm.)

Two areas in which security monitoring can help the business are in performance measurement and data flows. Performance measurement doesn't just mean the load on the server or the network bandwidth saturation. It can also mean the latency on database queries, which will almost certainly affect your application performance. It can refer to how quickly you can make configuration changes, how consistently they're done, and how long they stay configured that way. A lot of operational efficiency metrics are hidden in those logs, along with troubleshooting data. (Oh, the SSL certificate expired! That explains all the failed connections from one server to another...)

Data flows are the lifeblood of your business, and if you don't believe that, then try tripping over a network or power cable sometime. But it doesn't stop with availability of data: Many organizations don't really know who is accessing what data and why. Anyone who has tried a server migration will find this out very quickly, when other departments show up at the planning meetings to slow down the project. Knowing your highest-use data will help you understand its value; it may also tell you which business operations cross disciplines, which ones need optimization (because they're processing redundant data, for example), and where you might have opportunities that you hadn't thought about.

Business intelligence is a thing these days, and CEOs do like to hear about that. Operational efficiency is something that everyone can get behind. If you can demonstrate that security monitoring contributes uniquely to either or both of these, then you may just get permission to pay more for that fancy, new SIEM. Helping the business make more money is the next best thing to making it yourself. The outlook still isn't ROSI, but it does have a nice shine to it.

Wendy Nather is Research Director of the Enterprise Security Practice at the independent analyst firm 451 Research. You can find her on Twitter as @451wendy. Wendy Nather is Research Director of the Enterprise Security Practice at independent analyst firm 451 Research. With over 30 years of IT experience, she has worked both in financial services and in the public sector, both in the US and in Europe. Wendy's coverage areas ... View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Threaded  |  Newest First  |  Oldest First
Manchester United Suffers Cyberattack
Dark Reading Staff 11/23/2020
As 'Anywhere Work' Evolves, Security Will Be Key Challenge
Robert Lemos, Contributing Writer,  11/23/2020
Cloud Security Startup Lightspin Emerges From Stealth
Kelly Sheridan, Staff Editor, Dark Reading,  11/24/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Write a Caption, Win an Amazon Gift Card! Click Here
Latest Comment: This comment is waiting for review by our moderators.
Current Issue
2021 Top Enterprise IT Trends
We've identified the key trends that are poised to impact the IT landscape in 2021. Find out why they're important and how they will affect you today!
Flash Poll
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2019-20934
PUBLISHED: 2020-11-28
An issue was discovered in the Linux kernel before 5.2.6. On NUMA systems, the Linux fair scheduler has a use-after-free in show_numa_stats() because NUMA fault statistics are inappropriately freed, aka CID-16d51a590a8c.
CVE-2020-29368
PUBLISHED: 2020-11-28
An issue was discovered in __split_huge_pmd in mm/huge_memory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1.
CVE-2020-29369
PUBLISHED: 2020-11-28
An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe.
CVE-2020-29370
PUBLISHED: 2020-11-28
An issue was discovered in kmem_cache_alloc_bulk in mm/slub.c in the Linux kernel before 5.5.11. The slowpath lacks the required TID increment, aka CID-fd4d9c7d0c71.
CVE-2020-29371
PUBLISHED: 2020-11-28
An issue was discovered in romfs_dev_read in fs/romfs/storage.c in the Linux kernel before 5.8.4. Uninitialized memory leaks to userspace, aka CID-bcf85fcedfdd.