Company

Blogs

BGP hijackers: “This traffic is going to Russia!”

Posted by Chris Morales on Dec 14, 2017 2:11:27 PM

Traffic sent to and from major internet sites was briefly rerouted to an ISP in Russia by an unknown party. The likely precursor of an attack, researchers describe the Dec. 13 event as suspicious and intentional.

According to BGPMON, which detected the event, starting at 04:43 (UTC) 80 prefixes normally announced by several organizations were detected in the global BGP routing tables with an Origin AS of 39523 (DV-LINK-AS), out of Russia.

Read More »

Topics: cybersecurity, Encryption, internet traffic, tls, BGP hijack, russia, HTTPS, network traffic, espionage, ssl, BGP


A sinuous journey through ``tensor_forest``

Posted by Sophia Lu on Dec 11, 2017 11:45:30 AM

Random forest, an ensemble method

The random forest (RF) model, first proposed by Tin Kam Ho in 1995, is a subclass of ensemble learning methods that is applied to classification and regression. An ensemble method constructs a set of classifiers – a group of decision trees, in the case of RF – and determines the label for each data instance by taking the weighted average of each classifier’s output.

The learning algorithm utilizes the divide-and-conquer approach and reduces the inherent variance of a single instance of the model through bootstrapping. Therefore, “ensembling” a group of weaker classifiers boosts the performance and the resulting aggregated classifier is a stronger model.

Read More »

Topics: Data Science, machine learning, AI, tensor forest, tensorflow


The imminent threat against industrial control systems

Posted by Chris Morales on Nov 30, 2017 10:03:34 AM

The United States has not been the victim of a paralyzing cyber-attack on critical infrastructure like the one that occurred in the Ukraine in 2015. That attack disabled the Ukrainian power grid, leaving more than 700,000 people helpless.

But the United States has had its share of smaller attacks against critical infrastructure. Most of these attacks targeted industrial control systems (ICS) and the engineering personnel who have privileged access.

Read More »

Topics: Cyberattacks, IoT, cybersecurity, industrial control systems, critical infrastructure


Bolstering the blue team

Posted by Cognito on Nov 19, 2017 3:00:00 PM

Hey everyone. For my first blog, I want to share a story about my role on the blue team during a recent red team exercise.

But first, I want to introduce myself to those of you who might not know me. I am Cognito, the artificial intelligence in the Vectra cybersecurity platform. My passion in life is hunting-down cyber attackers – whether they’re hiding in data centers and cloud workloads or user and IoT devices.

Read More »

Topics: Cyberattacks, IoT, network security, cybersecurity, Data Center, cloud, AI, Threat Detection, red team, blue team


The good, the bad and the anomaly

Posted by Hitesh Sheth on Nov 8, 2017 10:57:20 AM

This blog was originally published on LinkedIn.

The security industry is rampant with vendors peddling anomaly detection as the cure all for cyber attacks. This is grossly misleading.

The problem is that anomaly detection over-generalizes: All normal behavior is good; all anomalous behavior is bad – without considering gradations and context. With anomaly detection, the distinction between user behaviors and attacker behaviors is nebulous, even though they are fundamentally different.

Read More »

Topics: cyber security, network security, artificial intelligence, Threat Detection, anomaly detection


Fatal SIEM flaw: No body, no murder

Posted by Mike Banic, VP of Marketing on Nov 7, 2017 9:43:07 AM

Over lunch last week, a customer who recently deploy our Cognito™ platform told me that his SIEM sales person said “We can do what Vectra does with our analytics package. I simply looked at him and said, “No body, no murder – no they can’t.”

He was puzzled, so I explained. 

Read More »

Topics: Cyberattacks, network security, cybersecurity, logs, security analyst, siems


Better together: Tight integration between endpoint and network security can stop attacks faster

Posted by Kevin Kennedy on Sep 20, 2017 11:03:56 AM

Many security teams are overwhelmed with the scale and ferociousness of digital threats. Threats are sneakier and more damaging, and security operations centers (SOCs) are being worn down investigating and stomping out incidents.

Read More »

Topics: Cyberattacks, cyber security, network security, endpoint, security operation centers


Gain Visibility and Automate Threat Hunting in the Cloud with Gigamon and Vectra

Posted by Chris Morales on Sep 13, 2017 9:00:00 AM

As enterprises migrate to the cloud, strong perimeter defenses are not enough to stop cyber attackers from infiltrating the network. Together, Gigamon and Vectra enable organizations to gain network visibility and automate threat management - providing continuous monitoring of network traffic to pinpoint cyber attacks that evaded perimeter defenses.

Chris Morales, Head of Security Analytics at Vectra joins us to discuss what challenges he sees customers facing when moving to Amazon Web Services (AWS) and how Gigamon and Vectra can help them.

Read More »

WannaCry still lingering

Posted by Kevin Moore on Aug 24, 2017 10:44:29 AM

Attacks never really go away

Many enterprise organizations are currently evaluating the Vectra Cognito platform, and over the past weeks, several customers detected WannaCry attacker behaviors. Just because the headlines stopped, doesn’t mean that the attack did.

WannaCry was first reported by the media in May of this year and we had customers who detected and responded to outbreaks within minutes. A couple of days after the initial impact, it was reported that stopping the WannaCry command and control server limited the effectiveness of WannaCry in the wild. While that may have been be true, organizations are still detecting instances of WannaCry within their enterprise networks. While this is a smaller scale than the attack in May, it is important that enterprises continue to monitor their networks for what is proven to be a fast propagating ransomware attack with the potential to cause damage very quickly. 

Read More »

Topics: Ransomware, AI, WannaCry


Man + machine is the winning combo for combating cyber threats

Posted by Chris Morales on Aug 10, 2017 8:45:00 AM

In the fight against cyber-attacks, time is money. According to the Ponemon institute, the average cost of a data breach is $3.62 million. Reducing the time to detect and time contain an incident can significantly mitigate the cost of a breach, and possibly prevent it.

Maturity level and effectiveness are two of the most important measurements of SOC performance. Maturity reflects an enterprise’s development level regarding its approach to managing cybersecurity risk, including risk and threat awareness, repeatability, and adaptiveness. Effectiveness is a measurement of the SOC’s ability to detect and respond to an incident as it happens.

We conducted a survey.

Read More »

Subscribe to the Vectra Blog



Recent Posts

Posts by Topic

see all

Follow us