Greetings To All
I hope that those of you who have taken a work break enjoyed it or are still doing so if sat inside somewhere waiting for the rain/hail storm or associated winds to abate ( otherwise why would you be reading this when on holiday?).
Certainly this summer is proving that weather cannot be relied on to follow any previous ‘norms’ any more (probably our own collective fault but I won’t dwell on that obvious point right now).
For those of you yet to escape from ‘your norm’ I wish you happy journeys and suitable accomodation and weather!
In this edition I will cover considerations that affect both PC’s & Macs.
email – Changes to be aware of
In recent months many email providers have set out to achieve better security for customers by pro actively snaring that lousy spam that we all hate and also stopping as best as they can the more dangerous ‘spear phishing’ offerings from scammers and crooks who target us more efficiently than before.
Certainly I have received more of those emails recently myself in common with many and the danger was first in the zip file attachment on earlier ones, and more recently in a hyperlink in the message body. So what can be done as the crooks get smarter?
The first thing is to be aware of is any dodgy wording styles you see in any email you recieve, even one purporting to come from a known contact because until all email providers have caught up with these changes to their systems its still possible to spoof an email to fool the recipient by disguising the senders real email address. (see DKIM & SPF below)
Next is to beware of zip file attachments. My previous anti virus didn’t alert me to the attachments by snaring them, but because I am naturally cautious I didn’t open them. The rogue emails were from people I didn’t know and each one had a differennt email domain source, very suspicious! So I only I saved them to my Desktop and, because I doubted the ‘Clean’ report that came from my now previous anti virus (Panda) and (surprisingly) my anti malware (Malwarebytes), I posted it them up to virustotal where it lit up all over the screen as dangerous!
Its not good that many well known AV vendors also didn’t see the danger! So now I use one that did see it, Kaspersky (subscription), though BitDefender would have done if I didn’t find its console irritating. Those weren’t the only 2 that caught it but they are the ones I am more familiar with.
So unless you are very confident, your best friend is still Suspicion and its best pal, Caution.
SPF & DKIM
Though this might appear like a 1980’s pop queen duo its a lot less pretty but for reasons I mentioned above, its now much more necessary and will affect your outbound emails being successfully received so do read on.
SPF & DKIM are each little records that need to be added to your email domains DNS settings so that when you send an email from any other source than your own registered email domain, it will carry the necessary credentials to get through the ever tighter mail gateways of the recipient’s email service. Otherwise it may be dumped in the spam skip or simply ‘dropped’ by the server because the address of the sender system differs from the one the email is usually sent from.One of many mass send email online platforms is MailChimp and as an example they have offer this advice …
“DMARC stands for Domain-based Message Authentication, Reporting, and Conformance, and takes effect if an email fails certain types of authentication. DMARC policies benefit the email community as a whole because they help prevent phishing, spoofing, and the delivery of fraudulent emails. However, strict DMARC policies can sometimes misidentify your legitimate marketing emails as fraudulent and reject them.”
They add … “To improve deliverability, we encourage you to use a From email address at a domain owned by you or your organization, like email@example.com. Not only will this help avoid delivery issues, it can help your subscribers recognize your brand. ” source http://kb.mailchimp.com/accounts/email-authentication/about-dmarc
As the web page shows the approach to DMARC when using a free email provider or a registered email domain diffe,r so an enlightened approach is needed. But its worth getting yours set up before too many of your emails become lost.
Time is up and I must leave NOW, but Windows wants to Update!
We all realise a little late that we must stop working on our laptops and because time deliberately accelerates when we least want it to, we have to move on promptly. Perhaps because we need to make it to an appointment, catch a train or bus or because the partners birthday party begins in less than 1 hour but Windows then freezes us to the spot by forcing us to wait for updates to complete! The tension and self recrimination wheels can begin turning which might spoil your next meeting experience unless …. you do this.
- Click on any empty area of the desktop or pressing Windows+D on your keyboard. Then, press Alt+F4 to access the Shut Down Windows dialog box.
- To shut down without installing updates, select “Shut down” from the drop-down list.
For those of you wanting to be geeky you could add the following line to a batch file you save on your desktop and run it when the need arises.
shutdown -s -t 0
Mac’s & Viruses / Malware
Before the current time the sound & safe Mac was a safe system where viruses rarely made in-roads but this is now increasingly under threat from web based attacks through the browsers as you traverse the web. Most ‘nasties’ that affect PC’s still don’t run on Macs but the number that do are increasing steadily so I think it is now time to flag this up and offer guidance.
I went looking for answers and found this report from a verifiable source which gives a full review of the reasoning for anti virus on Mac’s and offers ideas on prevention both through extra user care, and by installing an anti virus which it gives comparatrive reviews on and across several vendors of the programme.
It is a long read but as you might expect its worth it by comparison to becoming infected, especially so if the infection encrypts your data and ransomes it back to you for a fat fee! As always I can help you with working to an understanding and discussing actions, please contact me for this.
Please do keep in mind that by backing up your data to my Stroud Cloud you will be able to fully recover your data in that event, if lightning strikes differently.
That is all for now, have a great late summer while the sun still shines.
If I can assist, advise or entertain you further in I.T related topics do give me a call!