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.

Vulnerabilities / Threats

11/15/2017
12:00 PM
Kelly Sheridan
Kelly Sheridan
Slideshows
Connect Directly
Twitter
LinkedIn
Google+
RSS
E-Mail
50%
50%

Insider Threats: Red Flags and Best Practices

Security pros list red flags indicating an insider attack and best practices to protect against accidental and malicious exposure.
Previous
1 of 7
Next

(Image: Andrea Danti via Shutterstock)

(Image: Andrea Danti via Shutterstock)

Many businesses are finding the source of their greatest concerns are trusted employees with whom they interact every day.

The insider threat is growing, with more than half (53%) of organizations confirming insider attacks in the past 12 months and 27% stating they have become more frequent, according to a new study. High-profile incidents and news headlines have both spread awareness of the growing problem.

Ninety percent of businesses feel vulnerable to insider attacks, according to the new study by Cybersecurity Insiders. The group polled its member community of 400,000 people to learn about trends, insights, and guidance for its 2018 Insider Threat Report.

"You can see trend lines over time," says Holger Schulze, founder and CEO of Cybersecurity Insiders. "There is increased awareness not just that insider threats are real, but if and when they occur, they can be much more harmful than malicious attacks from the outside."

[Join Jean Marie Handy, senior threat researcher at Carnegie Mellon's Software Engineering Institute, for a conversation on "Detecting and Stopping Insider Data Leaks" at the INsecurity Conference, Nov. 29-30 in National Harbor, Md. Use code DR100 to save $100.] 

Not all insider attacks are malicious in nature, says Jon Heimerl, manager of the threat intelligence communication team at NTT Security. Data from the company's latest Quarterly Threat Intelligence Report indicates 25% of insider threats are hostile; the remaining 75% are due to accidental or negligent activity.

While accidental threats are more numerous, malicious insiders could cause more damage.

"A malicious insider - a guy who gets a job and does industrial espionage or gets disgruntled - those breaches tend to be bigger because they have more access to a lot of data and know exactly where to look to find data to steal," says Heimerl. "That's the problem hackers usually have. They have to find what, and where, that cool data is."

How to know if an insider threat is imminent? Many organizations are trying to figure it out. Insider threat detection is the top focus for 64% of companies, followed by deterrence methods (58%), and analysis and post-breach forensics (49%).

"Organizations realize deterrence is important, but at the end of the day they have to assume - especially larger organizations - there are active insider threats and insider attacks occurring," Schulze notes.

Here, the experts lay out red flags and best practices to help you determine when an insider threat is happening and what you can do to protect yourself. Read on for more:

 

Kelly Sheridan is the Staff Editor at Dark Reading, where she focuses on cybersecurity news and analysis. She is a business technology journalist who previously reported for InformationWeek, where she covered Microsoft, and Insurance & Technology, where she covered financial ... View Full Bio

Previous
1 of 7
Next
Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
kwanlass
50%
50%
kwanlass,
User Rank: Apprentice
11/15/2017 | 2:04:28 PM
re: Suspicious activity and increase in use of UEBA
Nice to see the use of tools to detect anomalous behavior doubling this year with either user & entity behavior analytics software or User Activity Monitoring tools - or both. In a release on the Cybersecurity Insider study by co-sponsor Veriato, president Larry Thompson reminded companies that solutions like DLP aren't enough. "UEBA and User Activity Monitoring help complete the picture," he said. Glad to see more companies are recognizing that.  

 
Data Privacy Protections for the Most Vulnerable -- Children
Dimitri Sirota, Founder & CEO of BigID,  10/17/2019
Sodinokibi Ransomware: Where Attackers' Money Goes
Kelly Sheridan, Staff Editor, Dark Reading,  10/15/2019
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
7 Threats & Disruptive Forces Changing the Face of Cybersecurity
This Dark Reading Tech Digest gives an in-depth look at the biggest emerging threats and disruptive forces that are changing the face of cybersecurity today.
Flash Poll
2019 Online Malware and Threats
2019 Online Malware and Threats
As cyberattacks become more frequent and more sophisticated, enterprise security teams are under unprecedented pressure to respond. Is your organization ready?
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2019-18214
PUBLISHED: 2019-10-19
The Video_Converter app 0.1.0 for Nextcloud allows denial of service (CPU and memory consumption) via multiple concurrent conversions because many FFmpeg processes may be running at once. (The workload is not queued for serial execution.)
CVE-2019-18202
PUBLISHED: 2019-10-19
Information Disclosure is possible on WAGO Series PFC100 and PFC200 devices before FW12 due to improper access control. A remote attacker can check for the existence of paths and file names via crafted HTTP requests.
CVE-2019-18209
PUBLISHED: 2019-10-19
templates/pad.html in Etherpad-Lite 1.7.5 has XSS when the browser does not encode the path of the URL, as demonstrated by Internet Explorer.
CVE-2019-18198
PUBLISHED: 2019-10-18
In the Linux kernel before 5.3.4, a reference count usage error in the fib6_rule_suppress() function in the fib6 suppression feature of net/ipv6/fib6_rules.c, when handling the FIB_LOOKUP_NOREF flag, can be exploited by a local attacker to corrupt memory, aka CID-ca7a03c41753.
CVE-2019-18197
PUBLISHED: 2019-10-18
In xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't reset under certain circumstances. If the relevant memory area happened to be freed and reused in a certain way, a bounds check could fail and memory outside a buffer could be written to, or uninitialized data could be disclo...