The best answer is that you cannot.  The hacker has a full time job of trying to get into your network and/or server.  You can’t fight the unknown exploit coming down the pipe tomorrow or next week.

Source: How can I make my site unhackable? – Quora

Security giant Avast has announced it intends to acquire fellow Czech-based antivirus software maker AVG for a purchase price of $25.00 per share in cash –..

Source: Avast acquires antivirus maker AVG for $1.3BN to gain scale and dive into IoT security | TechCrunch

According to a credible report, Google might be getting ready to unveil a couple of smartwatches, powered by the new Android Wear 2.0 and offering Google Assistant integration.

Source: Google reportedly working on two Android Wear 2.0 Nexus smartwatches

In an embarrassing security oversight flagged by security researcher, Amitay Dan, TP-Link lost control of the domain name used to manage its consumer routers, leaving computers prone to attack.

Source: TP-Link routers exposed to potential security flaw after domain registration lapses