Pourquoi vous devez vous soucier de la sécurité informatique

La technologie devient un aspect de plus en plus important de nos vies. Ceci étant, des sujets tels que la sécurité informatique ont été abordés, tant en ligne que dans les médias. Avec la prise de conscience croissante, les gens se demandent souvent pourquoi ils devraient s’occuper de la sécurité de leurs entreprises et de leurs systèmes. Les experts en sécurité rencontrent souvent des questions sur le temps, les efforts et le coût de la sécurité, avec des déclarations telles que:

«Je n’ai rien à cacher de toute façon. Aucune de mes données n’est confidentielle, alors peu importe si mes données sont compromis ».

Le fait est que l’utilisation quotidienne de la technologie, des logiciels et du matériel avec lesquels vous interagissez, rassemble et stocke des informations que vous ignorez. Il existe assez d’informations sensibles à
protéger sur votre système que vous ne savez probablement pas. Dans cet article, je vais vous montrer que même les systèmes les plus simples peuvent causer beaucoup de dégâts lorsqu’ils sont compromis.

Prenons un système simple, utilisé uniquement pour le courrier électronique. Réfléchissez un instant au type de courriels que vous recevez quotidiennement. Vous avez probablement un grand nombre de courriels dans votre boîte de réception et vous ne savez pas quelles informations sont rendus accessible.

Supposons qu’un attaquant accède à votre courrier électronique en utilisant un certain nombre de méthodes, telles qu’un enregistreur de frappe ou en devinant le mot de passe. Il aurait désormais accès à toutes les informations contenues dans les courriers électroniques. Au fur et à mesure que la technologie progresse, de plus en plus de données sont envoyées par courrier électronique. Les éléments tels que les reçus, les formulaires fiscaux, les talons de chèque de paie et les relevés de crédit sont tous des exemples de données pouvant être disponibles dans un courrier électronique. S’il parvient même à accéder à un reçu, l’impact peut être plus important que vous ne le pensez. Un reçu contient souvent des informations telles que des numéros de carte de crédit partiels, le coût total et l’entreprise qui vous a facturé.

Vous pensez probablement que cette information est plutôt inutile. Toutefois, dans certains cas, des numéros de carte de crédit partiels peuvent être utilisés pour identifier le type de carte. Avec l’accès à un courrier électronique, à un numéro de carte partiel, à un reçu, un attaquant pourrait convaincre une société émettrice de cartes de crédit de lui donner accès à votre compte. Ce type d’attaque n’est pas rare, et ce n’est que la partie visible de l’iceberg lorsque l’on examine uniquement les attaques par courrier électronique.

En utilisant votre compte de messagerie, un attaquant pourrait également envoyer des courriels se faisant passer pour vous, afin de convaincre vos contacts de révéler des informations, voire d’être également infecté. Les courriers électroniques sont généralement liés à d’autres comptes, ce qui signifie que si un courrier électronique est compromis, tout autre compte le sera également. En attaquant quelque chose d’aussi simple qu’un compte de messagerie, un attaquant pourrait compromettre presque tout ce que vous possédez.

Cela peut être préoccupant, cependant, il existe des mesures simples que tout le monde peut prendre pour se protéger des attaques en ligne. Voici quelques conseils que vous pouvez garder à l’esprit pour sécuriser vos systèmes et vous assurer que vos appareils resteront en sécurité.

1. L’Antivirus n’est pas parfait

L’antivirus peut être utile pour protéger votre ordinateur contre les attaques simples, mais il est facile de le contourner. La confiance excessive dans l’anti-virus est souvent une erreur que les utilisateurs vont commettre. Ils supposent que si un fichier est analysé sans problème, il est sécuritaire de l’ouvrir. En réalité, la plupart des anti-virus s’appuient sur le virus déjà vu et utilisent une signature pour vérifier s’il est identique. Si le virus est écrit manuellement ou s’il s’agit d’un nouvel exploit, il ne sera pas détecter par votre anti-virus.

Pour mieux vous protéger, assurez-vous que la source d’un fichier est fiable avant d’ouvrir ce dernier. De plus, gardez à l’esprit que toute extension de fichier peut être malveillante. Le plus souvent, les fichiers .exe, .xlsm et .docx sont utilisés pour attaquer les utilisateurs.

2. Vérifier les emails avant de télécharger les pièces jointes et de cliquer sur les liens

Letype d’attaque le plus répandu est le phishing (hameçonnage), qui consiste à convaincre un utilisateur ou une entreprise légitime de cliquer sur un lien ou de télécharger une pièce jointe. En général, si vous ne vous attendiez pas à recevoir un courrier électronique, ne cliquez sur aucun lien ni pièce jointe. En cas de doute, appelez ou contactez l’expéditeur en utilisant une méthode de communication sécurisée.

3. Toujours mettre à jour son système et ses logiciels

Une grande partie des attaques reposent sur des logiciels obsolètes. Vous pouvez réduire le risque de compromission d’un système en vous assurant que vos logiciels et votre système d’exploitation sont mis à jour. Les mises à jour peuvent prendre du temps et sembler fastidieuses, mais l’avantage de corriger les vulnérabilités de sécurité l’emporte sur les inconvénients.

En conclusion, il est important de protéger vos appareils afin de vous protéger du vols de données ou de compromission de ces derniers. N’oubliez pas qu’en tant qu’utilisateur, vous pouvez apprendre et vous informer sur les problèmes de sécurité présents sur vos appareils. Être prudent et comprendre les risques est le meilleur moyen de vous protéger.

818 commentaires
  1. smore traiolit
    smore traiolit dit :

    That is the right blog for anyone who desires to seek out out about this topic. You understand so much its almost exhausting to argue with you (not that I really would want…HaHa). You positively put a new spin on a topic thats been written about for years. Nice stuff, simply great!

    Répondre
  2. non dual teacher
    non dual teacher dit :

    We’re a gaggle of volunteers and opening a new scheme in our community. Your website offered us with useful information to paintings on. You’ve performed a formidable task and our entire group will probably be grateful to you.

    Répondre
  3. some g
    some g dit :

    It’s truly a great and useful piece of info. I am glad that you just
    shared this useful information with us.
    Please keep us informed like this. Thank you for sharing.

    Répondre
  4. g do
    g do dit :

    I am really impressed with your writing skills as well as with the layout on your weblog.
    Is this a paid theme or did you modify it yourself? Anyway
    keep up the nice quality writing, it’s rare to see a great blog like this one today.

    Répondre
  5. http://tinyurl.com
    http://tinyurl.com dit :

    After checking out a handful of the articles on your web
    page, I honestly like your technique of blogging.
    I bookmarked it to my bookmark site list and will be checking back soon. Please check out my web site too and let me know your opinion.

    Répondre
  6. kea.obr14.ru
    kea.obr14.ru dit :

    Hey there! I’ve been following your weblog for a long time now and finally
    got the courage to go ahead and give you a shout out from
    Porter Tx! Just wanted to tell you keep up the excellent work!

    Répondre
  7. vianchi.com
    vianchi.com dit :

    With havin so much content and articles do you ever run into any
    issues of plagorism or copyright infringement?

    My website has a lot of completely unique content
    I’ve either authored myself or outsourced but it looks like a lot of it is popping it
    up all over the web without my permission. Do you know any techniques to help stop content from being
    ripped off? I’d definitely appreciate it.

    Répondre
  8. tinyurl.com
    tinyurl.com dit :

    Can I just say what a comfort to find someone who genuinely knows
    what they’re talking about on the net. You certainly understand
    how to bring a problem to light and make it important.
    More people need to check this out and understand this side of the story.
    It’s surprising you’re not more popular because you surely possess the gift.

    Répondre
  9. cbd oil that works 2020
    cbd oil that works 2020 dit :

    Hello! This post couldn’t be written any better! Reading this
    post reminds me of my previous room mate! He always kept chatting
    about this. I will forward this article to him.

    Pretty sure he will have a good read. Many thanks for sharing!

    Répondre
  10. cbd oil that works 2020
    cbd oil that works 2020 dit :

    Hello this is somewhat of off topic but I was
    wondering if blogs use WYSIWYG editors or if you have to manually code with HTML.

    I’m starting a blog soon but have no coding know-how so I
    wanted to get advice from someone with experience.
    Any help would be enormously appreciated!

    Répondre
  11. webhosting
    webhosting dit :

    Hi! Someone in my Myspace group shared this website with us so I came to
    look it over. I’m definitely loving the information. I’m bookmarking and will be tweeting this to
    my followers! Superb blog and amazing design and style.

    Répondre
  12. best web hosting 2020
    best web hosting 2020 dit :

    Hey There. I discovered your weblog using msn. This is an extremely
    smartly written article. I’ll be sure to bookmark it and return to
    learn extra of your helpful information. Thanks for the post.
    I’ll definitely return.

    Répondre
  13. website host
    website host dit :

    Today, I went to the beach with my kids. I found a sea shell and gave it to my 4 year old daughter
    and said « You can hear the ocean if you put this to your ear. » She placed
    the shell to her ear and screamed. There was
    a hermit crab inside and it pinched her ear. She never wants
    to go back! LoL I know this is entirely off topic but I
    had to tell someone!

    Répondre
  14. web host
    web host dit :

    Greetings I am so happy I found your blog, I really found you by mistake,
    while I was browsing on Yahoo for something else, Anyhow I am here now
    and would just like to say cheers for a marvelous post and a all round exciting blog (I also love the
    theme/design), I don’t have time to read through it all at the moment but
    I have book-marked it and also included your RSS
    feeds, so when I have time I will be back to read a lot more, Please do keep up the awesome job.

    Répondre
  15. priceline cheap flights
    priceline cheap flights dit :

    Hi there, i read your blog occasionally and i
    own a similar one and i was just wondering if you get a lot
    of spam remarks? If so how do you reduce it, any
    plugin or anything you can advise? I get so much lately it’s
    driving me mad so any help is very much appreciated.

    Répondre
  16. adreamoftrains web hosting company
    adreamoftrains web hosting company dit :

    An interesting discussion is definitely worth comment.
    I do think that you should publish more on this subject matter, it might not be a taboo
    matter but typically folks don’t talk about such topics.
    To the next! Kind regards!! adreamoftrains best website hosting

    Répondre
  17. cheaptickets
    cheaptickets dit :

    I do accept as true with all the ideas you have offered to your post.
    They are very convincing and will certainly work. Still, the posts
    are very quick for novices. May just you please lengthen them a little from subsequent time?
    Thank you for the post.

    Répondre
  18. tadalafil reviews
    tadalafil reviews dit :

    And more at least with your IDE and bear yourself acidity into and south key, with customizable tailor and ischemia cardiomyopathy has, and all the protocol-and-feel online pharmacy canada you slide instead of severe hypoglycemia. slot machine online casinos usa

    Répondre
  19. website hosting companies
    website hosting companies dit :

    Howdy would you mind sharing which blog platform you’re using?
    I’m planning to start my own blog soon but I’m having a difficult time deciding between BlogEngine/Wordpress/B2evolution and Drupal.
    The reason I ask is because your design seems different then most blogs
    and I’m looking for something completely unique.
    P.S Apologies for being off-topic but I had to ask!

    Répondre
  20. best web hosting
    best web hosting dit :

    Greetings from Florida! I’m bored to tears at work so I decided to browse your blog on my iphone during lunch break.
    I enjoy the information you provide here and can’t wait
    to take a look when I get home. I’m amazed at how fast your blog loaded on my phone ..
    I’m not even using WIFI, just 3G .. Anyways, great site!

    Répondre
  21. website host
    website host dit :

    Heya just wanted to give you a brief heads up and let you know a few of the pictures aren’t loading correctly.
    I’m not sure why but I think its a linking issue. I’ve tried it in two different browsers and both show the same results.

    Répondre
  22. website hosting
    website hosting dit :

    When I initially commented I clicked the « Notify me when new comments are added » checkbox and now each time a comment is added I get several e-mails with the same comment.

    Is there any way you can remove me from that service?
    Many thanks!

    Répondre
  23. website hosting companies
    website hosting companies dit :

    Howdy! I could have sworn I’ve been to this blog before but after
    browsing through some of the post I realized it’s new to me.
    Anyways, I’m definitely happy I found it and I’ll be
    book-marking and checking back often!

    Répondre
  24. best web hosting 2020
    best web hosting 2020 dit :

    A motivating discussion is definitely worth comment. I believe that you ought to write
    more about this topic, it may not be a taboo matter
    but generally folks don’t speak about such topics.

    To the next! Kind regards!!

    Répondre
  25. cheap flights
    cheap flights dit :

    An outstanding share! I’ve just forwarded this onto a colleague who has been doing a little research
    on this. And he in fact bought me lunch simply because I discovered it for him…
    lol. So let me reword this…. Thanks for the meal!! But yeah, thanks for spending time to
    discuss this matter here on your site.

    Répondre
  26. generic viagra online
    generic viagra online dit :

    Close to canada online pharmacy into a description where she must end herself, up span circulation-to-face with the opinion and renal replacement analysis himselfРІ GOP Apprehension Dan Crenshaw Crystalloids Cradle РІSNLРІ Modifiers Him Exchange for Particular Aim In Midwest. generic tadalafil Upkezi tmsrim

    Répondre
  27. cheap flights
    cheap flights dit :

    Hi there, just became aware of your blog through Google, and found that it is truly informative.
    I am going to watch out for brussels. I’ll be grateful if you continue this in future.
    Lots of people will be benefited from your writing.

    Cheers! cheap flights yynxznuh

    Répondre
  28. Vernon Debois
    Vernon Debois dit :

    naturally like your web-site but you need to check the spelling on several of your posts. A number of them are rife with spelling problems and I find it very troublesome to tell the truth nevertheless I will definitely come back again.

    Répondre
  29. cheap flights
    cheap flights dit :

    Aw, this was an incredibly good post. Taking the time and
    actual effort to create a top notch article… but what can I
    say… I procrastinate a whole lot and don’t manage to get nearly anything done.

    Répondre
  30. cheap flights
    cheap flights dit :

    Every weekend i used to pay a quick visit this site,
    for the reason that i want enjoyment, for the reason that this this website conations in fact pleasant
    funny stuff too.

    Répondre
  31. cheap flights
    cheap flights dit :

    Can I simply say what a relief to find somebody that actually understands what they’re talking about over the
    internet. You certainly know how to bring a problem to light and make it important.
    A lot more people have to check this out and
    understand this side of the story. I was surprised you’re not more popular since you certainly
    possess the gift.

    Répondre
  32. black mass
    black mass dit :

    A person essentially help to make severely articles I’d state.
    That is the very first time I frequented your website page and to this point?

    I amazed with the analysis you made to create
    this particular publish incredible. Magnificent process!

    Répondre
  33. best website hosting
    best website hosting dit :

    When I originally left a comment I appear to have clicked the -Notify
    me when new comments are added- checkbox and from now on whenever a comment
    is added I get 4 emails with the exact same comment.
    There has to be a way you can remove me from that service?
    Kudos!

    Répondre
  34. viagra online generic
    viagra online generic dit :

    ISM Phototake 3) Watney Ninth Phototake, Canada online pharmacy Phototake, Biophoto Siblings Adjunct Group therapy, Inc, Impaired Rheumatoid Lupus LLC 4) Bennett Hundred Calaboose Situations, Inc 5) Ephemeral Atrial Activation LLC 6) Stockbyte 7) Bubonic Resection Grade LLC 8) Indefatigability With and May Go out in requital for WebMD 9) Gallop WebbWebMD 10) Velocity Resorption It LLC 11) Katie Mediator and May Make after WebMD 12) Phototake 13) MedioimagesPhotodisc 14) Sequestrum 15) Dr. buy levitra online Rbxbco mrrids

    Répondre
  35. Eugenezdev
    Eugenezdev dit :

    Greetings from Colorado! I’m bored at work so I decided to check out your blog on my iphone during lunch break. I love the info you present here and can’t wait to take a look when I get home. I’m shocked at how fast your blog loaded on my phone .. I’m not even using WIFI, just 3G .. Anyways, superb site!

    Répondre
  36. Marilounpvw
    Marilounpvw dit :

    Heya i’m for the first time here. I came across this board and I in finding It really helpful & it helped me out much. I hope to provide something again and help others like you helped me.

    Répondre
  37. Brettxhdq
    Brettxhdq dit :

    I’m not sure where you are getting your info, but good topic. I needs to spend some time learning more or understanding more. Thanks for wonderful information I was looking for this information for my mission.

    Répondre
  38. Jerrodmeaz
    Jerrodmeaz dit :

    I just could not go away your website before suggesting that I really loved the usual info an individual supply to your visitors? Is gonna be again often in order to investigate cross-check new posts

    Répondre
  39. Sharrivsqj
    Sharrivsqj dit :

    Hi there, I do believe your site might be having internet browser compatibility issues. When I take a look at your site in Safari, it looks fine however when opening in I.E., it has some overlapping issues. I merely wanted to provide you with a quick heads up! Aside from that, fantastic blog!

    Répondre
  40. liquid iodine plus uses
    liquid iodine plus uses dit :

    Fantastic site you have here but I was wanting to know if you knew of any forums that cover the same topics discussed here? I’d really love to be a part of community where I can get suggestions from other experienced people that share the same interest. If you have any suggestions, please let me know. Cheers!

    Répondre
  41. Judejpul
    Judejpul dit :

    Hey would you mind letting me know which hosting company you’re working with? I’ve loaded your blog in 3 completely different browsers and I must say this blog loads a lot faster then most. Can you suggest a good web hosting provider at a reasonable price? Kudos, I appreciate it!

    Répondre
  42. Yvettekbuc
    Yvettekbuc dit :

    I’m not sure where you’re getting your information, but great topic. I needs to spend some time learning more or understanding more. Thanks for great information I was looking for this information for my mission.

    Répondre
  43. Bernaeotr
    Bernaeotr dit :

    I am curious to find out what blog system you’re utilizing? I’m experiencing some small security issues with my latest website and I would like to find something more secure. Do you have any suggestions?

    Répondre
  44. Stevenkfmh
    Stevenkfmh dit :

    Hi! I could have sworn I’ve been to this website before but after looking at some of the articles I realized it’s new to me. Anyways, I’m certainly happy I found it and I’ll be bookmarking it and checking back frequently!

    Répondre