IOTrust Chain

IOTrust Chain Building an ecosystem securing internet and devices and a platform to build secured web3 DApps.

Decision Tree AlgorithmIt is a popular algorithm that solves the problem of machine learning by transforming the data in...
18/08/2022

Decision Tree Algorithm

It is a popular algorithm that solves the problem of machine learning by transforming the data into a tree-like structure. Each internal node of the structure denotes an attribute and each leaf node denotes a class label.

Advantages:-

1. Requires less effort for data preparation during pre-processing.
2. Feature scaling is not required.
3. It is robust to outliers.


SUPPORT VECTOR MACHINES (SVM) SVM algorithm is used to find a hyperplane in N-Dimensional space that distinctly classifi...
17/08/2022

SUPPORT VECTOR MACHINES (SVM)

SVM algorithm is used to find a hyperplane in N-Dimensional space that distinctly classifies the data points.

Advantages:-
1. More productive in high-dimensional spaces
2. Works well when there is an understandable margin of dissociation between classes.
3. It is more effective in instances where the number of dimensions is larger than the number of specimens
Disadvantages:-
1. It is not acceptable for large datasets
2. Not work well on datasets with high noise
3. It doesn’t provide probability estimates directly, these are calculated using K-fold cross-validation.

Ransomware has been wreaking havoc and posing a real challenge to cyber security forces over past few months. Some of th...
08/08/2022

Ransomware has been wreaking havoc and posing a real challenge to cyber security forces over past few months.

Some of the major updates from last week are :-

New Variants :

Phobos ransomware variant - .FILE extension and ransom note named info.hta and info.txt
Hydrox ransomware - .hydrox extension and ransom note named Hydrox Ransomware.txt.
Payt Ransomware - .Payt extension and ransom note named ReadthisforDecode.txt.
HiCrypt ransomware - .hicrypt extension

Attacks and Claims :

BlackCat ransomware claims attack on European gas pipeline
Semiconductor manufacturer Semikron hit by LV ransomware attack
Spanish research agency still recovering after ransomware attack
LockBit ransomware abuses Windows Defender to load Cobalt Strike
LockBit claims ransomware attack on the Italian tax agency
Conti ransomware hacked and encrypted the Costa Rican government.

Let's make internet more secure - Join IOTrust Chain .

KNN (K-Nearest Neighbours)KNN is a supervised learning algorithm that assigns labels to the new datapoint based on its d...
05/08/2022

KNN (K-Nearest Neighbours)

KNN is a supervised learning algorithm that assigns labels to the new datapoint based on its distance from the old data points on which the model was trained. The symbol “K” represents the number of nearest neighbours.

ADVANTAGES:-

1.)Can be used for both regression and classification problem statements.
2.)Can work on Non-Linear Data.
3.)Simple to understand and implement.
4.)Has a single hyperparameter that is K which makes the hyperparameter tuning easy.

DISADVANTAGES:-

1.)Sensitive to outliers.
2.)Doesn’t work well on Large Datasets as calculating distances between each data point will be costly.
3.)Data in all the dimensions should be scaled using feature engineering.
4.)Does not work well on imbalanced data.

A NEW DAY, A NEW RECORD BREAKING DDoS ATTACKNow with the largest DDoS attack that Europe has ever seen that occurred ear...
04/08/2022

A NEW DAY, A NEW RECORD BREAKING DDoS ATTACK

Now with the largest DDoS attack that Europe has ever seen that occurred earlier this month, the trend continues.

The attack occurred on 21st July for 14 hours, peaking at 853.7 Gbps (gigabits per second) and 659.6 Mpps (million packets per second).
The target, a client of Cybersecurity company Akamai, has been under the radar of attackers over the past 30 days with about 75 DDoS attacks.
Just like previous record-breaking attacks, this DDoS attack also originated from a "highly-sophisticated global botnet" of infected devices.
Powerful botnets capable of record-breaking DDoS attacks have been in the news recently among the likes of Mantis, Meris, etc.

The monetary loss from such attacks is huge besides the cost of mitigation services.

Let's Secure the internet - IOTrust Chain

NORMALIZATION V/S STANDARDIZATION
02/08/2022

NORMALIZATION V/S STANDARDIZATION

LINEAR REGRESSIONThe model’s main aim is to find the best linear line for the data set for which the error is minimal.As...
01/08/2022

LINEAR REGRESSION

The model’s main aim is to find the best linear line for the data set for which the error is minimal.

Assumes a linear relationship between the independent and dependent variables.

Used when data points can be picked easily on a linear line or there should be a minimal error.

Can be classified as:

1. Simple Linear Regression:-It is applied when there is only 1 independent variable present for the model to find the relationship.

2. Multiple Linear Regression:-It is applied when there are multiple independent variables present for the model to find the relationship.

Lockbit Again Into the Headlines, with new links between LockBit and BlackMatter/DarkSide - LockBit 3.0/Lockbit BlackThe...
29/07/2022

Lockbit Again Into the Headlines, with new links between LockBit and BlackMatter/DarkSide - LockBit 3.0/Lockbit Black

The Lockbit Ransomeware group has been in massive spotlight in the IT world for the last 3 months, due to its vigorous nature. From claims of attacks on the likes of the Italian Tax Agency, the whole St. Marys town, to startling announcements of the first Ransomeware Bug Bounty Program with its new 3.0 release.

Now, the new 3.0 variant, launched in June 2022, is being linked with inactive ransomware BlackMatter & DarkSide due to their similarities.
The fact that Multiple portions of LockBit 3.0’s code are borrowed from the BlackMatter ransomware was revealed during the analysis of a sample. LockBit's extensive similarities to BlackMatter come from overlaps in the privilege escalation and harvesting routines used to identify APIs required to terminate processes and other functions as well as the use of anti-debugging and threading techniques designed to thwart analysis.
Rumors are that Lockbit may have hired former BlackMatter developers, whom BlackMatter supposedly fired after a flaw allowing victims to decrypt their files was discovered, justifying its name "Lockbit Black"

Let's Secure the Internet - IOTrust Chain

Grow your knowledge on Overfitting and Underfitting
27/07/2022

Grow your knowledge on Overfitting and Underfitting

Self taught learning is a mechanism of machine learning that refers to getting the machine trained from the unlabelled d...
25/07/2022

Self taught learning is a mechanism of machine learning that refers to getting the machine trained from the unlabelled data and let it predict on the previously unseen data.

The training process majorly includes 3 steps:-
1. Learning via high-level representations from unlabelled data
2. Reconstructing labelled data
3. Building classifier over reconstructed data

For example, Self Driving cars or Cars with autopilot mode use self-taught learning technology to learn from the earlier movement of the car. It uses this technology to learn the movement of the car in various situations such as in traffic, at red lights, in tunnels and various other situations.

IS YOUR DATA SAFE? DO YOU THINK COMPANIES ARE WORTH YOUR TRUST? DO YOU CHECK THE CREDIBILITY OF VENDORS BEFORE PROVIDING...
22/07/2022

IS YOUR DATA SAFE? DO YOU THINK COMPANIES ARE WORTH YOUR TRUST? DO YOU CHECK THE CREDIBILITY OF VENDORS BEFORE PROVIDING PERSONAL DETAILS? - Let's take a look.

Neopets, a virtual pets website, has suffered a data breach which includes its database containing the personal information of 69 million users along with the source code of the website, approximately 460mb in size(compressed).
Neopets is a popular website where members can own, raise, and play games with their virtual pets.
This all came into the limelight when a hacker named TarTarX began selling the source code and database of the Neopets website for 4 bitcoins.

This breach may appear new, but surprisingly Neopets has a history of unauthorized access to its systems, and still, the company does not seem to be serious about its security.
Neo is full of breaches and multiple people had (and maybe still have) access for years. The only difference is they use it privately (mostly for genning and selling offsite). And many such cases are not even disclosed publically, who knows how much information has been breached and your data, and credentials are being sold?

Let's Secure the Internet - IOTrust Chain .

Hacking & Cryptomining group 8220 on a spree - 'Extending its Botnets'With the dip in the market value of cryptocurrenci...
20/07/2022

Hacking & Cryptomining group 8220 on a spree - 'Extending its Botnets'

With the dip in the market value of cryptocurrencies, cryptojacking actors are now scaling up their operations to keep up with the previous profits.
Along with various other groups, The '8220', a crypto mining gang, is also scaling up their botnets by exploiting Linux and cloud app vulnerabilities, increasing the amount up to 30000 infected hosts.
This is a financially motivated group that targets publicly available systems running vulnerable versions of Docker, Redis, Confluence, and Apache and then infecting AWS, Azure, GCP, Alitun, and QCloud hosts.

The updates in its new script, used in expanding their botnet base, relate to:
1) A sufficiently stealthy piece of code even after lacking dedicated detection evasion mechanisms.
2) The use of block lists in the script to exclude specific hosts from infections, to avoid honeypots set up by security researchers
3) It now uses a new version of its custom cryptominer, PwnRig, which is based on the open-source Monero miner XMRig.

Let's Seecure the Internet - IOTrust Chain .

#8220

Address

Dubai

Website

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