Computer Tips - Programming, Cybersecurity and Tech Tutorials

Imagine you're baking a delicious batch of cookies, following your grandma's secret recipe. But then, a mischievous squirrel sneaks in and replaces a pinch of cinnamon with a dash of…mystery powder! That's kind of like an SQL injection (SQLi) attack. Hackers, like mischievous squirrels, exploit website vulnerabilities by sneaking malicious code into user input fields. This "mystery powder" can trick the website's database (the oven) into baking something entirely different – maybe stealing your recipe, adding unwanted ingredients, or even burning the whole batch! Thankfully, website bakers have special tools like data validation and locking cabinets to keep their ovens squirrel-proof and cookies safe. So, next time you trust a website with your information, remember: just like you wouldn't share your grandma's secret recipe with a squirrel, be careful what you input online. Keep your digital cookies safe from sneaky squirrels! Let's crack open the...

This tutorial walks you through the fastest and safest way to find and unfollow Instagram users who don't follow you back without logging in to third-party services, downloading browser extensions, or installing apps or software.  Following the 15 steps mentioned in this article, you will end up with the accounts you follow but who don't follow you back. You need to go to each profile manually to unfollow them. Step 1 - Go to  https://www.instagram.com/ and log in with your credentials. Step 2 - Go to " Profile " (button with your display picture) >> " Settings and privacy " (button with the gear icon) >> " See more in Accounts Center ."

Real Numbers Rational Numbers 7.92 2/5 1/2 Integers Numbers -3 -2 -9 -7 -10 Whole Numbers {0, 1, 2, 3, ...} Natural Numbers {1, 2, 3, 4, 5, ...} Irrational Numbers √10 π √2 φ The real number system: rational numbers (with natural, whole, and integers nested inside) alongside irrational numbers. What Is a Rational Number? A rational number is any number that can be expressed as a fraction of two integers, where the numerator is a whole number and the denominator is a non-zero integer. The decimal form of a rational number either ends (terminates) or repeats infinitely. [1, 2, 3, 4] Key Characteristics and Forms Rational numbers encompass a wide variety of numbers, which can always be categorized into these four main forms: Integers: All whole numbers, both positive and negative, are rational because they can be written as a fraction over 1 (e.g., 5 = 5/1, -3 = -3/1). Fractions: Any standard or mixed fraction where the top and bottom are integers (with a de...