What are phishing emails? Phishing emails are sent to trick you into divulging a password of some kind or other personal details. Some estimates claim the number of fake emails sent each day is now in the billions. During these long periods of working from home due to Covid, many workers are unable to quickly ask a colleague if they … Read More

Since the World Health Organisation (WHO) declared the Corona Virus as an international emergency at the end of January, cybercriminals have predictably encorporated it into their last scams. They have been sending out emails proporting to be from the Center for Disease Control and Prevention and the (fictional) Wuhan Medical authorities. These emails contain a link that will show an … Read More

* These are known as ‘hot sites’ if you’re interested! This is all very well if you are a multi-million-pound company but for most businesses it’s a ludicrous idea. What everyone wants is something that enables them to get back up and running as quickly as possible, in the event of something happening to their current office setup (flood, fire … Read More

In this blog Josh Peacock, one of the network engineers here at Optima will compare 3 of the most popular VPNs on the market today. VPN stands for Virtual Private Network, it essentially adds you onto another Network and all your traffic goes through that Network. You can connect to a network in Hong Kong and all your out-going traffic … Read More

Now we use the internet to such an extent we need to make sure our details and browsing history is safe and secure. Cookies are used to track our browsing history and are used by companies to target advertising based of our searches. In some instances, this is useful as it shows us alternatives to our original search, very handy … Read More

There is finally some hope for the thousands that have fallen victim to so called ‘push payment’ scams with the announcment of a new voluntary code for Banks. Push Payment scams are where a fraudster seems to highjack emails and ask people to pay an outstanding bill or invoice to a different Bank Account. The account in question is owned … Read More

Have you ever wondered if your gmail account has been hacked? Or your Amazon account details leaked somewhere on the dark web? A website called Hack Notice can help you find out. Hack Notice is a website that allows you to enter in your “identities” to be monitored. These can be particular email addresses or freetext strings. They will then … Read More

Scammers. The scourge of the internet! Always looking for new ways to make innocent people part with their hard-earned cash. A recent scam involves sending people an email claiming they visited adult websites. They pretend these websites downloaded malware that gave the scammer access to various aspects of the recipients computer. These include what they type and also access to … Read More

It’s not just cyber criminals that can bring down your network and compromise data; careless users or disgruntled staff can be just as bad. Your network security is made up of hardware and software, policies and procedures which work to defend against threats to your systems. Layers of hardware and software can prevent threats from damaging computer networks and stop … Read More

Many of the current generation of chips in our computers use what is called a cache to speed up processing. The vulnerability that has been announced in recent days is that under certain circumstances the content of this area can be read and over time passwords or encryption keys identified bit by bit by these exploits that have been named … Read More

Daylight robbery without the overheads of a horse or mask Ransomware is an ever-growing threat to businesses. In the last few months three of our clients have fallen victim. We’ve seen one strain of Cerber 4.0 and two Aleta infections. Both variants do not have a decryption tool available at the time of writing. In this blog we discuss just … Read More