Detection – How can I, as an intermediary, check if a phishing site is valid if the scam only listens on the sponsor's link and blocks any other method of access? ?

How can I, as a trusted user of an intermediary company (such as PhishTank), check if a phishing site is valid if the scam is not listening? only on a single referent link (created randomly) and blocks any other access method?

To stage a threat scenario.

An attacker has sent an email to a local bank agent. This email is very similar to the official email of an employee of their company located at a higher level and the time has been planned. Later, they detect that it was a phishing attack by a former employee. They report the attack on PhishTank (for example), but they can not verify it because the link does not allow direct access (only with a single referent as in the email). How can they still check if there is a valid report?

Now the real question,

On a technical level, how does such an attack work?

networking – How to exclude a Hyper-V switch from network location detection

I use Windows 10 Pro (1903) with the Hyper-V role.

I need an internal network switch to be able to create a community from my host to my virtual machine with static IP addresses. The "default switch" Hyper-V adds changes to its IP range each time it is restarted.

I need to exclude this network card from the network location detection. I know this should be possible because the "default switch" and the "nat" (added by Docker) do not display anything else on the Network Connections screen (see picture).

Switching the network interface privately via Powershell does not persist between reboots, which is not ideal. Changing the group policy to make all unidentified networks confidential is also not due to security concerns (this is a laptop).

computer vision – Using colors in function detection

Is there a feature detector or extractor that uses the color information?

Sensors like SURF and SIFT and many others work in grayscale. How do you think the transformation can be continued to generate a grayscale image without losing the color information but adapted to these algorithms?

In particular, I must distinguish objects of similar shape but of different colors. And in general, colors provide more information about objects and classify them with better performance. That's why we have the vision of colors.

What machine learning algorithms are used for zero day attack detection by firewall companies such as Fortinet?

  • How do firewall companies like Fortinet use artificial intelligence algorithms to detect malicious traffic and zero day attacks?
  • Which machine / deep learning algorithms are used for this purpose?

javascript – Creating a grid for collision detection in an enveloping game

I make a 2D game that ends (when you move away from the right edge, you appear on the left, etc.). The playing area is square, all objects are circles (with AABB smaller than the playing area and, in most cases, much smaller).

I divide the game area into a grid to perform collision checks. I must determine in which cell (s) an AABB of an object lives.

At the present time, I have this tricky code to deal with cases where the object exceeds the left / right limit … I have the impression that it must exist a better way to write it.

gridX is the x dimension of the grid

x1 is the x coordinate of the cell in which the left boundary of the object lives (before taking into account the envelope)

x2 "" right limit

if (x1 < 0) {
  for (let j = x1 + gridX; j < gridX; j++) someFunction(j)
  for (let j = 0; j < x2; j++) someFunction(j)
} else if (x2 >= gridX) {
  for (let j = x1; j < gridX; j++) someFunction(j)
  for (let j = 0; j < x2 - gridX; j++) someFunction(j)
} else {
  for (let j = x1; j <= x2; j++) someFunction(j)

someFunction would then contain the y Coord version of the above and add to the grid.

Do not forget that I do not want to lose performance (because it will run several times a second).

I want to write someFunction Instead of declaring a function, I hope there is a better way to do it, especially if I wanted my game to be 3 dimensional in the future. It would be 25 pasta.

postgresql – Detection of a Logical Replication Error on Postgres v10 on AWS RDS CloudWatch Metrics
"When the schema is changed on the editor and the replicated data begins to arrive at the subscriber but does not fit in the schema of the table, the replication will be wrong until the schema be updated "

How to detect / query these errors on Postgres?

I have tried

SELECT * FROM pg_stat_subscription;

but it shows that he has received the message from the publisher. It got lost when I changed the schema of the publisher and the subscriber stopped receiving updates.

On AWS, the associated RDS cloudwatch metrics are:

OldestReplicationSlotLag (The size of the replica that delays the most in terms of received WAL data, applies to PostgreSQL.)

but i do not think this is the right measure if i want to know if my updates have been corrected and applied to the subscribers replica database.

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Event detection in a time series

I work with a time series that is actually a pressure signal.
There are special "events" in the signal I'm looking for. For example, the signal goes up or down suddenly or there is a steep tip in the signal. I've shown some of them with red arrows in the picture.
I know (but I'm not an expert) the field of data science and machine learning. What is the best way to use artificial intelligence techniques to automatically detect and categorize these events?
Thanks in advance!
some of the events I'm looking for

Veracrypt hashing algorithm detection

Is it possible to detect the hash algorithm used to encrypt a file or partition with Veracrypt?

algorithms – Detection of rotational symmetries of spatial structures

I have a spatial graph type structure. The structure consists of vertices in 3D space and connection edges. Are there any algorithms to identify the rotational symmetries of these structures? In particular, I'm interested in all axes of rotation along which I can rotate the structure so that it overlaps itself, as well as at the degree of rotation. For example, an equilateral triangle (3 vertices + 3 edges) would have an axis of rotation perpendicular to its plane, with a degree of 3 and 3 others in its plane, with a degree of 2 each.
The closest I can find are the molecular packets identifying the symmetry groups of the molecular structures. I would rather not go that far, because I'm only interested in rotation symmetries and not in the description of structures by whole-group theory.