Đề ôn thi Đề thi vào lớp 10 Hà Tĩnh môn Tiếng Anh - Mã đề HTI-125

For a long time, the traditional electricity grid has worked in a simple, one-way system. Power stations generate electricity, which is then sent to homes and businesses. This system (24) __________ for over a century, but it has limitations. It cannot easily handle renewable energy sources like wind and solar, which produce power unpredictably.

(25) __________, the smart grid represents a major upgrade. It uses digital technology for two-way communication between the utility company and its customers. With smart grids, information about electricity usage can be collected and (26) __________ in real-time. This allows for better management of energy. For instance, when demand is high, the grid can automatically reduce power to non-essential appliances in homes (27) __________ have smart meters installed. This helps prevent blackouts and saves money. These advanced systems also play a crucial (28) __________ in integrating renewable energy more effectively. Smart grids can instantly react to changes in power production, ensuring a stable and reliable supply for everyone. Ultimately, the goal is to create a more efficient and sustainable energy (29) __________.

In Vietnam, having your Facebook or Garena account hacked is a common fear for many teenagers. These online accounts are not just for fun; they are central to social lives and hobbies. Cybersecurity experts, like those at Bkav, constantly warn that Vietnamese users are a major target for cybercriminals. But why is there so much focus on these specific accounts? Understanding the reasons is the first step toward better online safety.

The primary reason is that these accounts are incredibly valuable. A high-level gaming account can be sold for a significant amount of money. A Facebook account with many friends and a long history is also a goldmine for criminals. They can use it to run advertising scams, send fraudulent messages to the user's friends asking for money, or even sell the personal data stored within it to other malicious groups.

Hackers use two main categories of methods to steal accounts: technical attacks and social engineering. Technical attacks involve using malicious software like viruses or keyloggers to steal your password as you type it. Social engineering, however, is more about tricking the user. A common tactic is phishing, where a hacker sends a message with a link to a fake login page that looks identical to the real Facebook or Garena site. When you enter your details, the hacker captures them.

Protecting yourself requires being proactive and skeptical. Always use strong, unique passwords for different sites and enable two-factor authentication (2FA) whenever possible. This adds an extra layer of security. Most importantly, never click on suspicious links or download files from unknown sources. Your online security is ultimately in your hands, and a little bit of caution goes a long way.