Identity theft occurs when someone uses another person's personal identifying information, like their name, identifying number, or credit card number, without their permission, to commit fraud or other crimes. The term identity theft was coined in 1964. Since that time, the definition of identity theft has been statutorily defined throughout both the U.K. and the United States as the theft of personally identifiable information. Identity theft deliberately uses someone else's identity as a method to gain financial advantages or obtain credit and other benefits, and perhaps to cause other person's disadvantages or loss. The person whose identity has been stolen may suffer adverse consequences, especially if they are falsely held responsible for the perpetrator's actions. Personally identifiable information generally includes a person's name, date of birth, social security number, driver's license number, bank account or credit card numbers, PINs, electronic signatures, fingerprints, passwords, or any other information that can be used to access a person's financial resources.Determining the link between data breaches and identity theft is challenging, primarily because identity theft victims often do not know how their personal information was obtained. According to a report done for the FTC, identity theft is not always detectable by the individual victims. Identity fraud is often but not necessarily the consequence of identity theft. Someone can steal or misappropriate personal information without then committing identity theft using the information about every person, such as when a major data breach occurs. A US Government Accountability Office study determined that "most breaches have not resulted in detected incidents of identity theft". The report also warned that "the full extent is unknown". A later unpublished study by Carnegie Mellon University noted that "Most often, the causes of identity theft is not known", but reported that someone else concluded that "the probability of becoming a victim to identity theft as a result of a data breach is ... around only 2%". For example, in one of the largest data breaches which affected over four million records, it resulted in only about 1,800 instances of identity theft, according to the company whose systems were breached.An October 2010 article entitled "Cyber Crime Made Easy" explained the level to which hackers are using malicious software. As Gunter Ollmann,
Chief Technology Officer of security at Microsoft, said, "Interested in credit card theft? There's an app for that." This statement summed up the ease with which these hackers are accessing all kinds of information online. The new program for infecting users' computers was called Zeus; and the program is so hacker-friendly that even an inexperienced hacker can operate it. Although the hacking program is easy to use, that fact does not diminish the devastating effects that Zeus (or other software like Zeus) can do to a computer and the user. For example, programs like Zeus can steal credit card information, important documents, and even documents necessary for homeland security. If a hacker were to gain this information, it would mean identity theft or even a possible terrorist attack. The ITAC says that about 15 million Americans had their identity stolen in 2012.
1-(sin^6x+cos^6x)=(3sin^2x)(cos^2x)
I got this far:
1-(sin^2x+cos^2x)(sin^4x-sin^2xcos^2x+cos^4x)=(3sin^2x)(cos^2x)
1-(sin^4x-sin^2xcos^2x+cos^4x)=(3sin^2x)(cos^2x)
Homework Statement
Suppose that the equation f(x,y,z)=0 can be solved for each of the three variables as a differentiable function of the other two. Prove that:
(dx/dy)(dy/dz)(dz/dx)=-1
Homework Equations
The Attempt at a Solution
In the case of two variables where one is a...
Homework Statement
Hi guys
In my book they use the following identity
e^{ - i\widehat Ht/\hbar } = e^{ - i\widehat Tt/\hbar } e^{ - i\widehat Vt/\hbar } + O(t^2 )
where H = T+V, and the last term means "terms of order t2 or higher". I can't quite see how they reach this identity. First...
Homework Statement
I am trying to show that for a vector field Va which satisfies V_{a;b}+V_{b;a} that V_{a;b;c}=V_eR^e_{cba} using just the below identities. Homework Equations
V_{a;b;c}-V_{a;c;b}=V_eR^e_{abc}(0)
R^e_{abc}+R^e_{bca}+R^e_{cab}=0 (*)
V_{a;b}+V_{b;a}=0 (**)
The Attempt at a...
Using the fact that we can write the vector cross-product in the form: (A× B)i =ε ijk Aj Bk ,
where εijk is the Levi-Civita tensor show that:
∇×( fA) = f ∇× A− A×∇f ,
where A is a vector function and f a scalar function.
Could you please be as descriptive as possible; as I'm not sure...
we know that \Gamma (s)= \int_{0}^{\infty}dxe^{-x}x^{s-1}
however every factor of the Riemann Zeta can be obtained also from a Mellin transform
\int_{0}^{\infty}dxf(x)x^{s-1} =(1-p^{-s})^{-1}
where f(x) is the distribution
\sum_{n=0}^{\infty}x \delta (x-p^{-n})
is there any...
Homework Statement
Reduce the equation \partial_\mu {*} F^{\mu \nu} = 0 into the following form of the Jacobi Identity:
\partial_\lambda F_{\mu \nu} + \partial_\mu F_{\lambda \nu} + \partial_\nu F_{\lambda \mu} = 0
The Attempt at a Solution
I can't figure out what the '*' is supposed to...
I saw this question in an abstract algebra text that I was reading.
"Is it true that (w − x) − (y − z) = (w − y) − (x − z) is an identity for real numbers?
Can you say why or why not?"
I know that an identity element does not change the value of a real number. So 0 is the identity element...
Please teach me this:
It seem to me the Ward-Takahashi is validated by the renormalization, if the theory can not be renormalized the proof of Ward identity is failed.In QED the Ward identity is validated by electrical charge renormalization.
The Ward-Takahashi implies a current...
Homework Statement
How would I know if let's say
Sec^2 = 5 / 4
Sec = +/- \sqrt{5/4}
Sec = + / - \sqrt{5} / 2
Now how would I know if whether to put a negative sign or a positive sign before the answer?
Because the textbook says Sec Theta < 0 therefor they added the negative sign...
i am trying to verify the following identity:
0 = ∂g_mn / ∂y^p + Γ ^s _pm g_sn + Γ ^r _pn g_mr
where Γ is the christoffel symbol with ^ telling what is the upper index and _ telling what are the two lower indices. g_mn is the metric tensor with 2 lower indices and y^p is the component of y...
Homework Statement
What conclusion can be drawn from the lines (x-x0)/a = (y-y0)/b = (z-z0)/c
(x-x0)/A = (y-y0)/B = (z-z0)/C
if aA + bB +cC = 0
Homework Equations
The Attempt at a Solution
I put everything in parametric form but that didn't do much for me. Is...
Homework Statement
I am reading an explanation on a trig identity but I am not fully understanding it...
Angle MOP = Theta
Angle POP' = Right angle
Angle AOP' = (Theta + Right angle)
Take OP' = OP ( WHY must it be equal?)
Angle MOP + P'OM' = 90 ( I understand this)
Angle MOP = Angle...
I'm supposed to use the relationship A^{-1}=\int_0^\infty d \alpha e^{-\alpha A} to show that
\frac{1}{A_1 A_2 \dots A_n}=(n-1)! \int_0^1 dx_1 \dots \int_0^1 dx_n \frac{\delta(1-x_1- \dots - x_n)}{(x_1A_1 + \dots + x_nA_n)^n}
I decided that I should try and do this inductively.
So far I...
I'm working on simplifying a big physical expression (I don't like the Navier-Stokes equations at all anymore), and I'm curious how to simplify the following term:
\vec{v}\cdot (\vec{v}\cdot\nabla )\vec{v}
where v is a fluid velocity - i.e. definitely spatially varying.
I'm just not sure...
Homework Statement
Let \vec{A}(\vec{r})and \vec{B}(\vec{r}) be vector fields. Show that
Homework Equations
\vec{\nabla}\bullet(\vec{A}\vec{B})=(\vec{A}\bullet\vec{\nabla})\vec{B}+\vec{B}(\vec{\nabla}\bullet\vec{A})
This is EXACTLY how it is written in Ch 3 Problem 2 of Schwinger...
Homework Statement
Verify C(n,k) = C(n-1,k) + C(n-1,k-1) algebraically.
Homework Equations
N/A
The Attempt at a Solution
I've set the identity up factorially like so: (n-1)!/k!(n-1-k)! + (n-1)!/[(k-1)!(n-2-k)!
I'm having a really hard time getting started here. That is the...
Homework Statement
\cos (\frac{(-1)\pi x}{L})-\cos (\frac{3\pi x}{L})
Homework Equations
The Attempt at a Solution
the first cosine is the same as positive but is the second cosine simply equal to
\cos (\frac{\pi x}{L})?
thanks!
Homework Statement
3(sin(x)^4+cos(x)^4)-2(sin(x)^6+cos(x)^6)=1
(these are sinx raised to the 4 and 6 powers, not x^4or6)
Homework Equations
Pythagorean Identities
The Attempt at a Solution
I've tried using pythagorean identities to change everything to terms of sine or...
Homework Statement
I was reading on the Weierstrass substitution, and I came across the following trigonometric identity:
tan^{-1}(\alpha) - tan^{-1}(\beta) = tan^{-1}\left(\frac{\alpha-\beta}{1+\alpha \beta}\right)Homework Equations
I'm not really sure which equations are applicable here...
Hi,
I came across the following expression in Landau and Lifgarbagez's Quantum Mechanics (Non-relativistic Theory) book:
\left(\cos\theta\frac{\partial}{\partial r} - \frac{\sin\theta}{r}\frac{\partial}{\partial\theta}\right)R_{nl}(r)Y_{l0}(\theta,\phi) =...
Homework Statement
\sum_{i=0}^{n} i^{p} = \frac {(n+1)^{p+1}}{p+1} + \sum_{k=1}^{p} \frac {B_{k}}{p-k+1} (^{p}_{k}) (n+1)^{p-k+1}
where Bk is a Bernoulli number.
There is no actual question here I would just like to know if this formula is for sums of i to any power, of course...
Homework Statement
Determine whether the operation has an identity element.
x*y = 3xy
Homework Equations
e*x = x*e = x, if this holds, e is an identity element
The Attempt at a Solution
My attempt:
x*z = z*x = 3xz, then 3xz = x <=> z = 1/3 => e = 1/3.
But the answer key in the...
Suppose that f composed with g equals g composed with f for all functions g. Show that f is the identity function.
I really just don't know where to start.
Homework Statement
I am supposed to verify that
\nabla\cdot(\mathbf{u}\times\mathbf{v}) = \mathbf{v}\cdot\nabla\times\mathbf{u} - \mathbf{u}\cdot\nabla\times\mathbf{v}\qquad(1)[/itex]
I want to use index notation (and I think I am supposed to, though it does not say to explicitly) to...
Homework Statement
Obtain the result of the infinite sum 1+\frac{1}{9}+\frac{1}{25}+\cdot\cdot\cdot
By applying Parseval's Identity to the Fourier series expansion of
0 if -\frac{\pi}{2} < x < \frac{\pi}{2}
1 if \frac{\pi}{2} < x < \frac{3\pi}{2}
Homework Equations...
Homework Statement
Prove that for an integer n greater than or equal to 2,
nC1 - 2nC2 + 3nC3 - + ... = 0. (nCm means n choose m)
Also,
2x1 nC2 + 3x2 nC3 + 4x3 nC4 +... = n(n-1)2^(n-2)
Homework Equations
(1+t)^a = 1 + aC1(t) + aC2(t^2) + ...
The Attempt at a Solution
I don't know...
1. Use Euler's identity to prove that cos3(t)=3/4cos(t)+1/4cos(3t)
2. ei\theta=cos(theta)+i*sin(theta)
3. 3/4cos(t)+1/2cos(3t)=3/4((eit+e-it)/2)+1/4((ei3t+e-i3t)/2)
Homework Statement
[PLAIN]http://img812.imageshack.us/img812/4068/deriveidentitybydesmond.jpg
In fact i came up with this identity just wondering if there is alternative way to prove it.Homework Equations
The Attempt at a Solution
I'm reading through a solution to a problem and at one point the following identity is used:
\frac{1-\cos(\beta)}{\sin(\beta)}=\frac{\sin(\frac{\beta}{2})}{\cos(\frac{\beta}{2})}
I've been trying to figure out where this comes from but with haven't got it yet.
Any ideas?
Hi, I've been trying to derive the electromagnetic stress tensor on my own, and I've run into a bit of a problem. I have a cross product of a curl (\vec{E}\times(\nabla\times\vec{E})) that I need to expand, and the typical...
Hey guys. How are you all doing? I'm helping my younger brother out with his trigonometry homework. He is dealing with verifying trigonometric identities. However, he has the problem that I am getting nowhere with. Hope you all can help. Thanks in advance. :)
Homework Statement
Verify...
Homework Statement
the problem is:
tan(theta) = cos(theta)
find theta: -pi < theta < pi
Homework Equations
tan(theta)=sin(theta)/cos(theta)
sin^2(theta)+cos^2(theta)=1
The Attempt at a Solution
Homework Statement
Prove that if z=z(x,y) is invertible that:
(dz/dx)(dy/dz)(dx/dy)=-1 where the d's represent partial differentiation not total differentiation
Homework Equations
The Attempt at a Solution
I guess you start with the 6 total derivatives and substitute them...
Hello, I'm unfamiliar with the notation used in this problem with the commas. I understand matricies, identities, etc. but not sure about the commas..
Question 3.2.9: Verify the Jacobi Identity: [A,[B,C]] = [B,[A,C]] - [C,[A,B]]
I see the BAC CAB rule here, but not sure how to show it...
1. I can't understand one step in the derivation of the Einstein tensor from the Bianchi identity.I have looked in a lot of books and all over the internet and everyone glosses over the same point as if its obvious, but it isn't obvious to me.
2. Below is the entire derivation. It seems...
Homework Statement
Can anybody prove the following double integral identity? How?:
\int_{0}^{1} s(1-s) f(sx) ds = \int_{0}^{1} s^2 \int_{0}^{1} t f(tsx) dt ds
Here f(x) is an arbitrary Riemann-integrable function.
Thanks in advance.
Homework Equations
I've found the following but it...
Is there an easy way to prove the identities:
e^{\hat{A}}e^{\hat{B}}=e^{\hat{A}+\hat{B}}e^{[\hat{A},\hat{B}]/2} and
e^{\hat{A}}\hat{B}e^{-\hat{A}}=\hat{B}+[\hat{A},\hat{B}]+\frac{1}{2!}[\hat{A},[\hat{A},\hat{B}]]+\frac{1}{3!}[\hat{A},[\hat{A},[\hat{A},\hat{B}]]]+...In Zettili they give that...
Homework Statement I have posted this problem on another website (mathhelpforum) but have received no replies. I don't know whether this is because no one knows what I am talking about or if it's just that no one can find a fault with my reasoning. Please please please could you post a reply...
Homework Statement
Let f(x,y,z)=0 and r=r(x,y,z) be another constraint. show that if r is held constant then
(\partial x/\partial y)_r *(\partial y/\partial z)_r *(\partial z/\partial x)_r = 1
hint: consider dr and use the fact:
(\partial x/\partial y)_z *(\partial y/\partial...