In the years since, many #DNS attacks have been created.

One example is DNS cache poisoning, where the attacker exploits flaws of DNS resolvers & make them cache incorrect IP addresses, causing clients to connect to #malicious hosts.

This reveals one vulnerability of DNS: it is unauthenticated.

Traditional DNS clients today have no way to validate answers, so they can easily be #spoofed.

#NetworkSecurity

@Edent This response by #Barclays does almost nothing to help #security, in fact it's a free "suckers list" for scammers to use as #spoofed caller ID

The simplest message to customers is to use ONE reception number, and repeat it in every text, popup, webpage, and ask customers to protect themselves by adding it to their contacts and ALWAYS presume you are talking to a criminal unless you called that number

There is no other practical advice that works