There are several categories of threat intelligence. https://info-savvy.com/types-of-threat-intelligence/ Technical Threat Intelligence Technical cyber intelligence involves collecting information about the attacker’s resources, such as command & control channels and tools. For example, it focuses on technical clues that indicate cybersecurity threats to phishing emails and malicious URLs. The goal is to collect information on specific IOCs (IP addresses, phishing email headers, hash checksums). This type of threat intelligence is important because it allows for the analysis of attacks. However, the value of technical threat intelligence is short-lived because hackers often change tactics. It is crucial to detect and analyze IOCs at the right time. Tactical intelligence is used by SOC team members. The information obtained here leads to new rules being written into the organization’s current security products (IDS/IP, firewalls, endpoint security systems, etc.). Suspicious IPs may also be detected from spam emails. The information obtained is directly fed back into the organization’s products. ...

Shortcuts Placing Location Settings ON/OFF on the Home Button Create a shortcut to open the URL and specify the following for the URL: prefs:root=Privacy&path=LOCATION Placing it on the home button makes toggling OFF/ON easier. Kindle Auto-Read Aloud on iPhone Enabling AssistiveTouch Settings → Accessibility → Touch → AssistiveTouch → ON Screen Reading Open the Kindle app and select screen reading from AssistiveTouch◎. iPhone Reading Aloud Challenges Pauses on image pages - Japanese books often have numerous inserted images, unlike English books’ translations, resulting in frequent pauses. Fluency - English books pose no issue, but Japanese books sometimes encounter difficulties in reading aloud. Functionality - Instances where reading aloud fails to start, indicating slight instability. Forced Reset Press the volume up button. Press the volume down button. Long-press the side button. Release the button when the Apple logo appears. Official Apple Guide ...

When developing smart contracts using Solidity, efficient development processes and reliable testing are crucial. Therefore, in this article, we’ll introduce and explore Hardhat, a handy tool for Solidity developers. What is Hardhat? Hardhat is a development tool for building, testing, and deploying smart contracts on the Ethereum blockchain. Formerly known as Buidler, it was rebranded as Hardhat in 2020. Here are some key features of Hardhat: Customizable Task Runner: Hardhat provides a flexible task runner to execute various tasks required for Ethereum development. This allows for automation of tasks such as building, compiling, testing, and deploying contracts. ...

A Distributed Denial-of-Service (DDoS) attack is a malicious attempt to disrupt the normal operation of a targeted server, service, or network by overwhelming it with a flood of internet traffic. These attacks are executed by leveraging a multitude of compromised computer systems, often referred to as “bots” or “zombies,” which are under the control of the attacker. DDoS attacks can cause significant downtime, financial loss, and reputational damage to the targeted entity. ...

Happy Hacking Keyboard ⌨ I use the HKKB Type-S on Mac/OSX and have noted some recommended key configurations. Configuration of DIP Switches on the Backside Mac Compatibility SW1: OFF SW2: ON DEL key as Backspace SW3: ON SW4 and SW5 should be set to OFF. PowerSave SW6: ON/OFF It’s up to personal preference, but for efficiency, OFF is recommended. Combination with Mac App Magnet As the keyboard lacks arrow keys, I’ve configured the following shortcuts using the Command key for screen arrangement. This, coupled with the HKKB’s cursor keys, proves to be very convenient. ...

A Rubber Hose Attack refers to a technique in cryptography and cybersecurity where physical or psychological coercion is used to extract information. This term is often used metaphorically to contrast with theoretical or technical methods of breaking encryption. Background of the Term The name comes from the idea of “beating someone with a rubber hose,” symbolizing the use of violence, threats, or psychological pressure instead of technical hacking to obtain sensitive data. ...

1. Invalid comparison between dtype=datetime64[ns, America/New_York] and datetime64 Error This error occurs when comparing timestamps in Yahoo Finance with different timezones. Solution To fix this error, we need to localize the timestamps to UTC before comparing them. start = np.datetime64(datetime.date.today() - datetime.timedelta(days=freq)) df.index = df.index.tz_localize(None) # Localize to UTC df = df[start < df.index] 2. Could not import the lzma module Error This error occurs when importing pandas 1.0 or later with an incomplete Python installation. Solution To fix this error, we need to install the xz module using brew and reinstall pandas. ...

Easily convert percentage values stored as strings (e.g., “85%”) into numeric values for analysis in Python! 🚀 Why Use This Function? 🤔 📊 Data Cleaning: Many datasets store percentages as strings, which are not suitable for calculations. 🧹 Preprocessing: Converting these to numbers is essential for machine learning and data analysis. Function Example 🐍 def str_to_rate(s): if pd.isnull(s) == False: return float(s.replace('%', '')) else: return s How to Use 🛠️ col = "ReplyRate" df[col] = df[col].apply(str_to_rate) 🔄 This will convert all percentage strings in the column to float numbers (e.g., “85%” → 85.0). ⚠️ Null values will remain unchanged.

Solidity functions are the building blocks of smart contracts, allowing you to define the behavior and logic of your decentralized applications. They can be called internally or externally, and their visibility and state permissions can be controlled through modifiers. Understanding how to properly implement functions is crucial for creating efficient and secure smart contracts. Here are some basic function examples: Addition ➕ function add(uint a, uint b) public pure returns (uint){ return a + b; } Message 📝 function add(uint a, uint b) public pure returns (uint){ return a + b; } Solidity Visibility Modifiers 👁️ private 🔒 : Only accessible within the current contract internal 🔐 : Accessible within the current contract and inherited contracts external 🌐 : Only callable from outside the contract (via transactions or other contracts) public 🔓 : Accessible from anywhere (no restrictions) State Permission Modifiers ⚡ If you don’t specify pure/view, the function will consume gas. Keep this in mind! ...

Regular Maintenance sudo apt update sudo apt upgrade Error during Regular Maintenance: 11: Resource temporarily unavailable This is a solution for handling resource shortage detected during sudo upgrade. E: Could not get lock /var/lib/dpkg/lock – open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? Check if apt exists with the ps command. If it does, wait a bit and retry, or if possible, restarting may be quicker. ...