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.

Application Security

9/5/2018
08:00 PM
100%
0%

7 Ways Blockchain is Being Used for Security

Blockchain is being used as a security tool. If you haven't thought about adopting it, you might want to reconsider your take.
Previous
1 of 8
Next

The distributed ledger of blockchain has found application in many fields, from cryptocurrency to supply chain. Much of the excitement about blockchain is due to its reputation as an inherently secure technology. But can that inherent security be applied to the field of security itself?

In a growing number of cases, the answer is "yes." Security professionals are finding that the qualities blockchain brings to a solution are effective in securing data, networks, identities, critical infrastructure, and more. As with other emerging technologies, the biggest question is not seen as whether blockchain can be used in security, but in which applications it is best used today.

Blockchain is being used in a number of security applications, ranging from record-keeping to acting as part of the active data infrastructure, and more options likely are on the horizon.

But while excitement over blockchain's potential grows, it's important to keep that potential in perspective.

One of the claims frequently made about blockchain is that it is an "un-hackable" technology. While no intrusive hacks have been demonstrated yet, it's wrong to say that blockchain can't be hacked. In early 2018, a "51% attack", in which a threat actor managed to gain control over more than half of a blockchain's compute power and corrupt the integrity of the ledger, showed that novel techniques can be effective. While this particular attack is expensive and difficult, the fact that it was effective means that security professionals should treat blockchain as a useful technology - not a magical answer to all problems.

Here are some ways blockchain is being used or considered as a security tool. 

(Image: NicoElNino)

 

Curtis Franklin Jr. is Senior Editor at Dark Reading. In this role he focuses on product and technology coverage for the publication. In addition he works on audio and video programming for Dark Reading and contributes to activities at Interop ITX, Black Hat, INsecurity, and ... View Full Bio

Previous
1 of 8
Next
Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
Jesussavesme@1
50%
50%
[email protected],
User Rank: Apprentice
11/6/2018 | 12:16:34 AM
Helpful article
Thanks for your article .really helpms me a lot

https://socialprachar.com/31-10-18-what-is-blockchain-technology/?ref=sudheer
The Problem with Proprietary Testing: NSS Labs vs. CrowdStrike
Brian Monkman, Executive Director at NetSecOPEN,  7/19/2019
RDP Bug Takes New Approach to Host Compromise
Kelly Sheridan, Staff Editor, Dark Reading,  7/18/2019
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Current Issue
Building and Managing an IT Security Operations Program
As cyber threats grow, many organizations are building security operations centers (SOCs) to improve their defenses. In this Tech Digest you will learn tips on how to get the most out of a SOC in your organization - and what to do if you can't afford to build one.
Flash Poll
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2019-14248
PUBLISHED: 2019-07-24
In libnasm.a in Netwide Assembler (NASM) 2.14.xx, asm/pragma.c allows a NULL pointer dereference in process_pragma, search_pragma_list, and nasm_set_limit when "%pragma limit" is mishandled.
CVE-2019-14249
PUBLISHED: 2019-07-24
dwarf_elf_load_headers.c in libdwarf before 2019-07-05 allows attackers to cause a denial of service (division by zero) via an ELF file with a zero-size section group (SHT_GROUP), as demonstrated by dwarfdump.
CVE-2019-14250
PUBLISHED: 2019-07-24
An issue was discovered in GNU libiberty, as distributed in GNU Binutils 2.32. simple_object_elf_match in simple-object-elf.c does not check for a zero shstrndx value, leading to an integer overflow and resultant heap-based buffer overflow.
CVE-2019-14247
PUBLISHED: 2019-07-24
The scan() function in mad.c in mpg321 0.3.2 allows remote attackers to trigger an out-of-bounds write via a zero bitrate in an MP3 file.
CVE-2019-2873
PUBLISHED: 2019-07-23
Vulnerability in the Oracle VM VirtualBox component of Oracle Virtualization (subcomponent: Core). Supported versions that are affected are Prior to 5.2.32 and prior to 6.0.10. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle VM VirtualBox...