Cloud computing is about hardware-based services involving computing, network and storage capacities. These services are provided on-demand, hosted by the cloud provider and can easily scale up and down.

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Is Cryptree suitable for cloud storage?

I'm evaluating a cloud storage product. The marketing literature states it uses Cryptree. I pulled the paper and performed a quick read, but I don't see where Cryptree lends itself to confidentiality ...
4
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2answers
84 views

How to keep data private where software requires an online check

When software forces a user to verify online (phone home) before use, it creates an opportunity for private data created with this software to be physically connected to the Internet. This may not be ...
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4answers
3k views

How to mitigate SSL based DDoS attacks?

as you probably know the problem with SSL based DDoS attacks is, that the traffic cannot be analysed and filtered by a DDoS mitigation service provider such as Prolexic, Akamai, Radware, etc. without ...
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2answers
84 views

Can an attacker or law enforcement compromise apps in Google Play so that when I update I install the compromised app?

What are the chances a third party could make changes to apps on Google Play that I have installed, so that when I next update I am compromised?
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3answers
256 views

Cloud Based WAF

I'm currently evaluating different approaches to implement a web application firewall (WAF) in our architecture. We need the WAF due to PCI DSS. I would prefer using a cloud based WAF (e.g. ...
0
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2answers
160 views

Forensic in Cloud environment

Let's assume that I have access to an EC2 instance (whether a private key for a Linux instance or the username and password for Windows instance), and I used a software like FTK Remote Agent to ...
4
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2answers
303 views

Is the same decryption key used for data on the server as locally with Lastpass?

Lastpass stores the password databases encrypted on the server. Does it give a database to anyone who asks? If no, then what authentication (i.e. password) is used? I use Lastpass on multiple devices ...
2
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1answer
106 views

Will two virtual machines running on the same physical host machine get the same value from /dev/random?

Will two virtual machines running on the same physical host machine get the same value from /dev/random if read over the same time period? Say that Virtual-machine-1 wants to generate its ssh host ...
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1answer
93 views

Does Server Mistrust improve security? [closed]

By server mistrust, I mean the fully implemented lack of customer plaintext on a vendor's system, and lack of vendor access to customer plaintext. Specific case in question: Password and SSH key ...
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5answers
4k views

How unlikely is it that a Google Doc link is guessed?

Most (if not all) of us know that a Google Doc link looks something like this: https://docs.google.com/document/d/13P3p5bA3lslqEJT1BGeTL1L5ZrQq_fSov_56jT9vf0I/edit There are becoming several tools (...
4
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1answer
526 views

/dev/random in EC2 cloud

is /dev/random any good in AWS EC2 for use in making a shared key that will be passed over a secure channel? i am concerned that a launched instance would have not much entropy to begin with. what ...
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7answers
5k views

GPU powered Password cracking machine - buy metal or cloud?

As a IS consulting firm, we would like to have our very own password cracking machine. Great. Now, after some sketching and brain storming we concluded that GPU is the best way to go (contrary to CPU ...
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10answers
7k views

How can I share files with other individuals using the cloud in a secure way?

I would like to use a dropbox because it is easy and convenient. But I want to encrypt the files with the public key of the intended recipient, so he will be the only one who can access the data in ...
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1answer
285 views

Securing a VPS network with a VPN and a DMZ

I've got several VPS boxes (Digital Ocean boxes w/Ubuntu) that I would like to lock down from the outside world. I want to have several private boxes (web servers, db servers, puppet/master boxes etc....
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1answer
297 views

Is CloudKit or iCloud suitable for storing PII?

iCloud is Apple's storage technology that copies data from one iPhone and shares it with every other device. CloudKit is a similar technology that allows (from what I can tell) the partial ...
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1answer
87 views

What security considerations should I take when planning do to Incident Response in my hybrid public cloud environment?

I am trying to compile a list of areas one should be aware of when doing Incident Response on public cloud environments, e.g. a hybrid public cloud, where some services are provisioned in local data-...
2
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2answers
1k views

Is SpiderOak truly “zero-knowledge”?

I've recently changed SpiderOak password on computer A. Because I have SpiderOak installed on computer B as well, I thought I will have to update the password on it so the application can connect to ...
2
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1answer
318 views

On the fly encryption for unencrypted cloud services?

Today Amazon announced their Cloud Drive with unlimited storage for only 60$/yr. Microsoft did the same with Office 365 a while ago. I don't really want to entrust either service with my dearest ...
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1answer
262 views

“It is safe if only Port 443/HTTPS is accessible from Internet!” Is it? [closed]

I was in discussion with a vendor to implement a backup solution and as flexible as most cloud applications nowadays, it needs to be access from anywhere on Internet without VPN or any special ...
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1answer
167 views

Is cloud server without HTTPS secure

I am running a Seafile Open Source Cloud server (v 4.0.6) on my Raspberry Pi 2. Currently it is set up to simply run without HTTPS or even a domain name on [myIP]:8000. I am also running an Apache web ...
2
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1answer
240 views

Is End to End encryption possible for all servers across the whole infrastructure?

Running into a possible situation where a client I am working with is requesting that all data that leaves the servers should be encrypted and here, we are talking of hundreds of Linux servers ...
0
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1answer
120 views

uploading photos to cloud from an infected device [closed]

My computer is infected with Malware and (shame on me) of course I didn't back up my photos or word docs. I also happen to know almost NOTHING about computers. Is it possible to upload photos to cloud ...
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2answers
214 views

How to secure sensitive information on cloud from administrator (end-to-end encryption)

When I use end-to-end encryption to secure documents and sensitive information on cloud or on computer, there is always a risk of accessing these information by administrator. For example if you use ...
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3answers
899 views

How to secure delete inside a virtual machine?

Here is a tricky one: Can you securely delete a file from a VM? I'm sure the answer is dependent on a million different variables, and I'm sure the answer is something like "not really" but I want ...
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0answers
156 views

Firewall requirements for SaaS service providers

I have not had much success compiling a workable overview on the topic of firewalls and application service providers, despite making a rather extensive contribution to Google's workload this month. I'...
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7answers
2k views

Is this set-up PCI-Compliant?

Question: Is there a way to store credit card information on a shared hosting server AND be PCI compliant? Here is the setup: 1) SSL is being implemented for the whole checkout process and for the ...
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2answers
196 views

Is it safe to store encrypted volumes on cloud syncing services?

A recent discussion on another website prompted a proclamation that storing (TrueCrypt, LUKS, DMG, etc) on cloud sync services like Dropbox is unsafe, since a version history is kept of each file, and ...
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0answers
41 views

Security schemes regularly in use on cloud

I've been looking into how connections are managed in the cloud, in order to better understand the threats users and their deployments may face. The most important and common ones in use seem to be ...
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1answer
269 views

Acquiring remote forensic image from EC2 instance

I'm trying to figure the best way to acquire remote image from an EC2 instance. Here is how I took/trying to take an image of an EC2 EBS drive: Using EnCase Remote Recovery (trial for 14 days): 1.a:...
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1answer
52 views

Potential dangers of re-locating critical systems to cloud

It was suggested by some consultants that We relocate some of our critical systems in our environment to cloud base architecture. Besides knowing the fact that on a cloud base architecture we have no ...
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2answers
291 views

Can Amazon's AWS Identity and Access Management (IAM) be used to manage server access?

Requirement 8.1.1 of PCI DSS states: Assign all users a unique ID before allowing them to access system components or cardholder data. Using Amazon IAM I can set up individual accounts for users ...
6
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2answers
943 views

Is cloud hosting allowed for FIPS 140-2?

I am in the very early stages of making my application FIPS 140-2 compliant... so early in fact that I am not sure what level it has to be... just writing a preliminary recommendations document at ...
3
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4answers
1k views

Security risk of allowing ICMP “destination unreachable” packets on AWS

If I configure an Amazon AWS VPC, should I explicitly allow ICMP "destination unreachable" packets inbound? I am wanting the VPC firewall to block everything by default, however does this mean this (...
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0answers
65 views

What are the steps to securing encryption keys/databases on an unsecured DAAS provider?

Most Desktop As A Service providers store their virtual hard drives and the VMs RAM in a way that allows them to access their contents. Choosing a provider who offers a 'no-knowledge of server' ...
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0answers
212 views

An Efficient and Secure Dynamic Auditing Protocol for Data Storage in Cloud Computing [closed]

I am doing research on this topic and have to submit research paper in my college. I've googled many times for relevant material but didn't find anything suitable. Here are some key features : ...
11
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3answers
7k views

Is Firefox Password Manager less secure than LastPass?

After installing the LastPass password manager, I am presented with a login dialog including the option to "Disable Insecure Firefox Password Manager". (This option appears as long as the Firefox ...
1
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1answer
216 views

help identifying an IP address from email sent from my gmail account

Someone sent the following email from my gmail account. I believe it was hacked and if I can find the IP address I may be able to identify the person who did it. Here is the information. Please let me ...
1
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2answers
144 views

IDS across seperate AWS accounts

I have 2 separate AWS accounts and I would like to a Vuln scanner/IDS on one to scan another. One environment is a regular AWS account and the other is in AWS Gov Cloud. Due to limitations within ...
0
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1answer
129 views

Password for XLS files

I am not sure if this is right place to ask this question. I have created an xls file to store all my password in it. lately I have uploaded same file on Google Drive to access it from remote ...
2
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2answers
208 views

It it a good idea to whitelist inbound email using a Hash on the address? (Similar to BATV, but with DKIM)

Problem Statement I'm looking at ways to ensure that business partners, or emails from trusted senders, never get quarantined; ....in other words prevent "ham being seen as spam". Ideally this ...
0
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2answers
111 views

what is the cons and pros of using webfiltering based on cloud security?

nowadays some vendors offering web filtering based on cloud security , where your web traffic will be forwarded to vendor cloud to be filtered and controlled at the vendor proxy , the vendor will ...
2
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2answers
772 views

What was the security vulnerability behind Box and Dropbox and what's different now?

Earlier today I received a number of comments saying that my shared links were disabled. I looked around and saw a number of articles explaining what happened, and Dropbox posted an official statement ...
16
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4answers
4k views

In what ways does Full or Partial Homomorphic Encryption benefit the cloud?

Can someone explain, in plain English, the practical ways FHE and PHE can be leveraged in the cloud? Some interesting (and confusing) links include this Microsoft Research PDF and this wiki entry. ...
43
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8answers
8k views

What are some considerations before moving personal data to Google Drive?

I am considering uploading some (all) of my digital personal data to Google Drive. I guess this would instantly grant access for NSA to my data. (Is that right?) Who would have access to my data on ...
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0answers
71 views

Can user identifying information in Dropbox be derived from subscription data?

I've noticed that my Dropbox installation really loves sending unencrypted information over the net including a "user_id" and it's user-agent. What i want to know is if it's possible at all to ...
3
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1answer
323 views

unexpected thumbprint when connecting via remote desktop - what now?

I have an Amazon EC2 instance in a VPC. I have not logged into it for some time, so I used the Amazon EC2 CLI with ec2-get-console-output to check what the thumbprint should be when I connect. To my ...
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2answers
332 views

Are files hosted on cloud servers/websites/databases manually checked by people?

I was wondering ... when I upload a file to, say, Dropbox, does anybody personally check it to see what it is? Say I upload a copy of my Blu-ray movie to cloud storage ... will anyone check, and ...
14
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3answers
4k views

Is amazon S3 secure enough to hold personal documents?

I have a client who is looking to hold personal information such as Driving Licences and Insurance documents in order to verify if a user of the site is who they say they are and lives where they say ...
3
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1answer
103 views

Forensics in the cloud

I recently did a university module on digital forensics and learned a lot about the process, and techniques, of digital forensics investigations. We didn't actually cover the cloud although I couldn'...
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1answer
876 views

Resources for pentesting cloud based services/web-apps?

I want to know about some of the good resources for pen-testing cloud based services or web-apps (such as AWS). I googled for it but there are really few good resources out there. For example, I liked ...