The biggest obstacle for crypto-currencies is getting the attention of the general public. Many consumers still have no idea what crypto-currencies are, nor do they know how to use them safely. As such, many ordinary people avoid using crypto-currencies altogether. This situation will only get better as the underlying technology becomes more powerful and easier to use. In fact, there are many projects in development that hope to revolutionize the use of crypto-currency via smartphone apps and hardware wallets. If these things come together, we could soon see a fully functional and secure crypto-currency system that anyone can use with no training or prior knowledge required.
A denial of service attack targets websites, web applications and online services. Attackers send fake traffic to a target website or online service to make it unavailable. A common type of DDOS attack is to flood a website with requests. This makes it difficult for users to access the website and causes system crashes. Other DDOS attacks involve sending fake emails to a website's email account or creating malicious links that are easily accessible by users. DDOS attacks can be conducted via Internet Relay Chats (IRC). In this way, cyber attackers can send large amounts of traffic to a targeted website without needing an Internet connection themselves.
Password managers make it easy to create strong passwords without hassle. Most require you to manually paste your various passwords into the program before accessing sensitive information. This is tedious and prone to human error when creating new accounts. Password managers also have built-in features to hide common words or numbers in your accounts. This makes it much harder for someone else to gain access by guessing your password based on easily accessible information.
Phishing is essentially a fraud using email as a delivery platform. Many people get hacked and their personal information is stolen by clicking on fake links. Phishing emails usually look like legitimate emails, but are fake and designed to fool users. The most common types of phishing scams involve sending modified versions of legitimate emails with links to fake websites. Those who want to scam others will modify an existing website and alter the link, text and overall design to make it legitimate. These sites are then used to access sensitive information such as bank accounts and credit card numbers. Some emails will also contain an attachment that looks official but contains malicious code that allows the sender to control the user's computer once it is downloaded. This can be used to steal personal information or perform other malicious acts.
When using your smartphone, you need to pay attention to your security settings. Most phone users protect their personal information and data when using their phone. This is usually done through lock screens and security settings. Setting your phone to automatically lock your screen when you are not actively using it helps with this. Additionally, enabling biometric security for your phone's login options is also a good idea. All of these things help you protect your phone from unauthorized users.