Internet Technologies 简明教程

Internet Security

Introduction

Internet 安全性是指保护 Internet 上的通信。它包括特定的安全协议，例如：

Internet security refers to securing communication over the internet. It includes specific security protocols such as:

  1. Internet Security Protocol (IPSec)

  2. Secure Socket Layer (SSL)

Internet Security Protocol (IPSec)

它由 Internet 工程任务组 (IETF) 设计的一组协议组成。它提供网络层面的安全性并有助于为 IP 层创建经过身份验证和保密的包。

It consists of a set of protocols designed by Internet Engineering Task Force (IETF). It provides security at network level and helps to create authenticated and confidential packets for IP layer.

Secure Socket Layer (SSL)

它是由网景通信公司开发的安全协议。 ）。它提供传输层面的安全性。它解决了以下安全问题：

It is a security protocol developed by Netscape Communications Corporation. ). It provides security at transport layer. It addresses the following security issues:

  1. Privacy

  2. Integrity

  3. Authentication

Threats

互联网安全威胁影响着网络、数据安全以及其他互联网连接系统。网络犯罪分子已经发展出多种技术来威胁银行帐户、企业和组织的隐私和完整性。

Internet security threats impact the network, data security and other internet connected systems. Cyber criminals have evolved several techniques to threat privacy and integrity of bank accounts, businesses, and organizations.

以下是部分互联网安全威胁：

Following are some of the internet security threats:

  1. Mobile worms

  2. Malware

  3. PC and Mobile ransomware

  4. Large scale attacks like Stuxnet that attempts to destroy infrastructure.

  5. Hacking as a Service

  6. Spam

  7. Phishing

Email Phishing

网络钓鱼是一种向用户发送电子邮件并声称自己是合法企业的活动。其主要目的是窃取敏感信息，如用户名、密码和信用卡详细信息。

Email phishing is an activity of sending emails to a user claiming to be a legitimate enterprise. Its main purpose is to steal sensitive information such as usernames, passwords, and credit card details.

这类电子邮件包含链接到感染了恶意软件的网站，并指示用户在外观和感觉与合法网站相同的虚假网站中输入详细信息。

Such emails contains link to websites that are infected with malware and direct the user to enter details at a fake website whose look and feels are same to legitimate one.

What a phishing email may contain?

以下是网络钓鱼电子邮件的征兆：

Following are the symptoms of a phishing email:

这类电子邮件经常包含语法错误的文字。忽视此类电子邮件，因为它们可能是垃圾邮件。

Most often such emails contain grammatically incorrect text. Ignore such emails, since it can be a spam.

不要点击可疑电子邮件中的任何链接。

Don’t click on any links in suspicious emails.

此类电子邮件包含诸如“如果您没有回复电子邮件，您的帐户将被关闭”之类的威胁。

Such emails contain threat like “your account will be closed if you didn’t respond to an email message”.

这些电子邮件包含看似连接到合法网站的图片，但它们实际上连接到虚假网站。

These emails contain graphics that appear to be connected to legitimate website but they actually are connected to fake websites.