Topic Overview
Network security is the process of protecting a business’ digital landscape from threats by building a security framework into and around its various on-prem and cloud environments. 网络保护安全工具旨在持续扫描基础设施 vulnerabilities and signs of a breach.
The ephemeral nature of the connected systems that make up an organization's network means it is a constantly shifting mass of potentially vulnerable virtual and cloud devices. This can make the job of 入侵检测和响应系统(IDPS) incredibly difficult. But, today’s cybersecurity 解决方案与任务非常匹配.
The main purpose of network security solutions is to reduce the risks posed to an IT infrastructure. This mission becomes particularly critical as today’s disseminated workforces are further stretching the need for security of transnational networks that connect those workers.
The pandemic supercharged adoption of remote work and accelerated the need for cloud adoption as workers moved around the world and abandoned offices. Thus, network security’s reason for existing didn’t necessarily change so much as its scope suddenly became much bigger than it had ever been.
Critical – and many times confidential – data that was safely contained in an on-prem environment now had to be flung out into the world for workers to remotely access, thus cloud network security 迅速成为2020年科技界最热门的话题. 即使2024年回归正常化, 如今，网络安全的宏大范围依然存在.
You secure a network by first determining exactly what kinds of systems and environments you need to protect and defend. 根据美国网络安全和基础设施安全局(CISA), “保护网络需要持续监控, assessments, 以及各种相互关联的因素之间的缓解, including servers, the cloud, Internet of Things (IoT), 互联网连接和用于访问网络的许多物理资产.”
The agency goes on to say that the devices that make up network infrastructure “are ideal targets for malicious cyber actors because more or all organizational and customer traffic must pass through them.”
At a very high-level, securing those infrastructure devices means the same thing to everyone looking to achieve network security. 不过，从操作上看，这一过程对每个公司来说都有明显不同 安全运营中心(SOC). Let’s take a look at a few of the more general steps SOCs can take to begin working toward a stronger network security posture:
As it is typically understood that network security can encompass many methods of network-perimeter defense, 让我们来看看几个更经常被soc采用的解决方案.
NAC is the process of leveraging security protocols to maximize control over who or what can access a proprietary network. 如果网络安全服务和做法-特别是 data loss prevention (DLP) 在任何特定领域都特别薄弱，那么很有可能是 threat actor 将能够找到他们的方式，恶意泄露以前安全的数据.
A SIEM 是一种通过集中检测安全问题的解决方案吗, correlating, 并通过IT网络分析数据. SIEM解决方案可以帮助公司满足遵从性需求，并通过组合来遏制攻击者 log management 集中化以及检测和搜索能力.
The zero trust security model 强大的身份验证框架是否天生不信任每个人, endpoint, mobile device, server, network component, network connection, application workload, and business process. Each process or person must be authenticated and authorized continuously as every action is performed.
A WAF helps protect a company’s web applications by inspecting and filtering traffic between each web application and its interactions with the internet. WAF可以帮助保护web应用程序免受以下攻击 cross-site-scripting (XSS) and 结构化查询语言(SQL)注入. Common useful applications include e-commerce platforms leveraging WAFs to prevent data theft and fraud.
Humans – also known as employees – are not typically thought of as part of an IT organization’s attack surface. 然而，很大一部分可利用的漏洞是人为错误造成的. 让内部员工定期参与是一个好主意 安全意识培训 programs so they can stay updated on how to defend themselves and the organization against threats – even if they’re not part of the IT or security teams.
The macro benefits of network security are fairly obvious: Keep attackers out and plug critical vulnerabilities in a timely manner so they can't be exploited. Let's now take a look at a few of the less obvious benefits of a robust network security program: